Decoding trim tags.................
12-19-2009, 10:31 AM
#21
Burning Brakes
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I suspect your website lists GM recommended color combinations and it's possible your car could have been oytster and silver if the combination was approved by GM and if it wasn't going to cost them anything. They already had silver paint and they already had oyster interiors, so the combination is possible.
Go here http://www.corvetteactioncenter.com/...x.php?cmd=area and see if you can obtain a copy of the original dealer invoice for your car. It will list the original colors, all the equipment and options, prices, original dealer, date shipped from St. Louis, etc.
Go here http://www.corvetteactioncenter.com/...x.php?cmd=area and see if you can obtain a copy of the original dealer invoice for your car. It will list the original colors, all the equipment and options, prices, original dealer, date shipped from St. Louis, etc.
12-19-2009, 10:33 AM
#22
Melting Slicks
1978 CORVETTE
To mark Corvette's 25th anniversary, the 1978 model received a major aerodynamic restyling with large wraparound back window and a fastback roofline.
This was the Corvette's first restyling since 1968. Two special editions were produced, one well known and the other little more than an optional paint job.
New tinted glass lift-out roof panels were wired into the standard anti-theft system.
A 24-gallon (US) fuel tank replaced the former 17-gallon (US) tank, filling space made available by a new temporary spare tire.
Inside was a restyled, padded instrument panel with face-mounted round instruments and a new locking glove box that replaced the former map pocket.
The 4ir conrestyled interior had more accessible rear storage area with a roll shade to hide luggage.
The wiper-washer control was moved from the steering column back to the instrument panel, but turn signal and headlight-dimmer controls remained on the steering column.
Door trim was now of a cut-and-sew design with sott expanded vinyl or cloth.
As in 1977, the seats had leather side bolsters, with either leather or cloth seating areas in a fine rib pattern.
Corvette's optional L82 high-performance 350-cid V-8 reached 220 hp as a result of a new dual-snorkel cold-air intake system, larger-diameter exhaust and tailpipes and lower-restriction mufflers.
The automatic transmission used with the optional V-8 lost weight and had a low-inertia, high-stall torque converter.
Base engines used a Muncie four-speed manual gear box with higher first-second gear ratios than before; the luced: performance V-8 used a close-ratio Borg-Warner.
The axle ratios used in cars sold in California and high-altitude counties were switched from 3.08:1 to 3.55:1.
A total of 12,739 had the optional L82 engines, 3,385 Corvettes had the M21 four-speed close-ratio gearbox, and 38,614 had automatic transmission.
Glass roof panels, which had been promised earlier, actually became available this year.
What Chevrolet described as "aggressive" 60- series white-letter tires also joined the option list for the first time.
An optional AM/FM-CB stereo radio used a tn-band power antenna on the rear deck.
Each of this year's Corvettes could have Silver Anniversary emblems on the nose and rear deck.
A total of 15,283 displayed the $399 special two-tone "Silver Anniversary" paint combination with silver metallic on top and charcoal silver on the lower body.
Pinstripes accentuated the fender's upper profiles, wheel openings, front fender vents, hood, and rear license cavity.
Interiors were also silver.
Various other options were required, including aluminum wheels.
For a considerably higher price, buyers could have the Limited Edition replica of the Indy Pace Car with distinctive black-over-silver paint and red accent striping.
Equipment in this "Indy Package" (RPO code Z78) included a special silver interior with new lightweight high-back seats, special front and rear spoilers, P255/60R1 5 white-letter tires on alloy wheels and lift-off glass canopy roof panels.
The Indy Pace Car package's content included nearly all Corvette options, plus special decals (unless the customer specified that they be omitted).
Upholstery was silver leather or leather with smoke gray cloth inserts.
The year's 11 Corvette colors were
Classic White
Silver
Silver Anniversary
Black
Corvette Light Blue
Corvette Yellow
Corvette Light Beige
Corvette Red
Corvette Mahogany
Corveffe Dark Blue
Corvette Dark Brown
Interior colors were Black; Dark Blue; Light Beige; Red; Mahogany; and Oyster.
I.D. NUMBERS
The serial number [Vehicle Identification Number -- VIN] was stamped on a plate on the inner vertical surface of the left windshield pillar visible through the windshield.
Serial numbers ranged from 1Z87*8S400001 to 1Z87*8S440274 Position Character Description
1 1 Chevrolet Division
2 Z Corvette
87 coupe
5 * Engine type where * is replaced by the following
L = L48 350-cid V8, 175-hp, 4-barrel
H = L82 350-cid V8, 220-hp, 4-barrel
6 8 1978
7 S Assembled in St. Louis, MO
8 to 13 400001 to 446558 production sequence
Engine serial number began 0001001
Corvette engines have the last six digits of the VIN stamped on the block just ahead of the cylinder head on the right-hand side combined with a three-letter engine code suffix
Also cast into the top rear of the block is a four-symbol code indicating when the engine was built
The first letter of the date code shows the month the block was cast
The one or two numbers shows the month
The last digit shows the year
Engine suffixes: Code Engine Horsepower Compression Transmission Fuel Supply Emission Control System
CHW L48 350-cid 185-hp V-8 8.2:1 manual four-barrel carburetor
CLM L48 350-cid 185-hp V-8 8.2:1 automatic four-barrel carburetor
CLR L48 350-cid 175-hp V-8 8.2:1 automatic four-barrel carburetor California
CLS L48 350-cid 175-hp V-8 8.2:1 automatic four-barrel carburetor high-altitude
CMR L82 350-cid 220-hp V-8 8.9:1 manual four-barrel carburetor
CMS L82 350-cid 220-hp V-8 8.9:1 automatic four-barrel carburetor
CUT L48 350-cid 185-hp V-8 8.2:1 automatic four-barrel carburetor
The body number plate was located on the engine side of the cowl.
The Fisher Body Style Number 78-1YZ37 identifies a Corvette Stingray coupe
The body number is the production serial number of the body.
The trim number indicates the interior trim color and material.
The eleven 1978 Corvette exterior colors were:
10 = Classic White
13 = Silver;
13/07 = Siver Anniversary
19 = Black
26 = Corvette Light Blue
52 = Corvette Yellow
59 = Corvette Light Beige
72 = Corvette Red
82 = Corvette Mahogany
83 = Corvette Dark Blue
89 = Corvette Dark Brown.
Upholstery Codes Color Cloth & Leather Upholstery Leather Upholstery
Oyster 12C 122
Silver 15C 152
Black 19C 192
Dark Blue 29C 292
Light Beige 59C 592
Dark Brown 69C 692
Red 72C 722
Mahogany 76C 762
IDENTIFICATION
Model Model No. Body/Style No. Body Type Factory Price Shipping Weight Production Total
1978 Corvette 1Y Z87
2-dr. Sport Coupe - 2 passenger $9446 3401 40,274
1978 Limited Edition 1Y Z87/Z78
2-dr. Sport Coupe - 2 passenger $13,653 3401 6,502
ENGINE
Feature Standard Engine (RPO L48) Standard Engine (RPO L48) Optional Engine (RPO L82)
Type V-8, 90-degree Overhead valve
Block Cast iron block
Displacement 350 cid (5.7 liters) 350 cid (5.7 liters) 350 cid (5.7 liters)
Bore & Stroke 4.00 x 3.48" 4.00 x 3.48" 4.00 x 3.48"
Compression ratio 8.2:1 8.2:1 8.9:1
Brake horsepower 185 @ 4000 175 @ 4000 220 @ 5200
Torque 280 lb-ft @ 2400 270 lb-ft @ 2400 260 lb-ft @ 3600
Main bearing five
Valve lifters hydraulic
Fuel supply Rochester M4MC Rochester M4MC California emissions and high-altitude emissions Rochester M4MC
TRANSMISSION
Standard Manual Transmission
four-speed fully-synchronized
floor-mounted gear shifter
gear ratios
1st = 2.85:1
2nd = 2.02:1
3rd = 1.35:1
4th = 1.00:1
Rev = 2.85:1
Final drive ratio: 3.36:1 or 3.70:1
Optional Manual Transmission
close ratio four-speed fully-synchronized
floor-mounted gear shifter
gear ratios
1st = 2.43:1
2nd = 1.61:1
3rd = 1.23:1
4th = 1.00:1
Rev = 2.35:1
Final drive ratio: 3.36:1 or 3.70:1
Automatic Transmission
Three-speed Turbo Hydra-Matic
floor-mounted gear shifter
gear ratios
1st = 2.52:1
2nd = 1.52:1
3rd = 1.00:1
Rev = 1.94:1
Final drive ratio: 3.08:1 or 3.55:1
CHASSIS
Feature Coupe
Wheelbase 98 inches (2.489 m)
Overall length 185.2 inches (4.704 m)
Overall width 69.0 inches (1.753 m)
Overall height 48 inches (1.219 m)
Ground Clearance 4.5 inches (11.4 cm)
Front tread 58.7 inches (1.491 m)
Rear tread 59.5 inches (1.511 m)
Tires P277/70R-15 steel-belted radial
Positraction standard
Steering recirulating ball
Front suspension Independent, unequal-length control arms with ball joints, coil springs, and stabilizer bar
Rear suspension Independent, trailing link, transverse semi-elliptic leaf springs
Brakes Hydraulic, vented four wheel discs; 11.75-inch diameter, single calipers
Ignition HEI electronic
Body construction Separate fiberglass body and box-type ladder frame with cross-members
Fuel tank 24 US Gal (20 Imp Gal) (91 liters)
OPTIONS
RPO A31 Electric power windows ($130)
RPO AU3 Power door locks ($120)
RPO B2Z Silver Anniversary Paint ($399)
RPO CC1 Removable glass roof panels ($349)
RPO C60 Air conditioning ($605)
RPO D35 Sport mirrors ($40)
RPO FE7 Gymkhana suspension ($41)
RPO G95 Positraction axle, optional highway ratio ($15)
RPO K30 Cruise Control ($99)
RPO L82 350-cid 210-hp V-8 ($525)
RPO M21 Four-speed close-ratio manual transmission (no cost option)
RPO MX1 Turbo Hydra-Matic automatic transmission (no cost option).
RPO N37 Tilt-telescopic steering column ($175)
RPO QBS P255/60R-15 White-letter steel-belted radial tires ($216.32)
RPO QGR P255/70R-15 White-letter steel-belted radial tires ($51)
RPO UA1 Heavy-duty battery ($18)
RPO UM2 AM-FM stereo radio with tape system ($419)
RPO UP6 AM-FM stereo radio with CB system ($638)
RPO U58 AM-FM stereo radio ($286)
RPO U69 AM-FM radio ($199)
RPO U75 Power antenna ($49)
RPO U81 Dual rear speakers ($49).
RPO YJ8 Aluminum wheels ($340)
RPO ZN1 Trailering package ($89)
RPO ZX2 Convenience group ($84).
HISTORICAL NOTES
Introduced: October 6,1977
Model-year production: 46,772 (but some industry sources have reported a total of 47,667)
Calendar-year production: 48,522
Calendar-year sales by U.S. dealers: 42,247
Model year sales by U.S. dealers: 43,106
The limited-edition Indianapolis 500 Pace Car replica was created to commemorate the selection of Corvette as the pace car for the 62nd Indianapolis 500 race on May 28, 1978.
A production run of 2,500 was planned, but so many potential buyers who saw it at the New York Auto Show in February wanted one that the goal quickly expanded to 6,500 or roughly one for every Chevrolet dealer.
Buyers also had to endure a selection of "forced RPOs" (items installed at the factory whether wanted or not).
The mandatory extras included power windows, air conditioning, sport mirrors, a tilt-telescope steering wheel, a rear defogger, an AM/FM stereo with either an 8-track tape player or CB radio, plus power door locks, and a heavy-duty battery.
Before long, the original $13,653 list price meant little, as speculators eagerly paid double that amount and more.
Later the price retreated to around the original list.
Even though so many were built, the Indy Pace Car is still a desirable model.
Dave McLelIan became head of engineering for Corvettes and worked on the next-generation models.
To mark Corvette's 25th anniversary, the 1978 model received a major aerodynamic restyling with large wraparound back window and a fastback roofline.
This was the Corvette's first restyling since 1968. Two special editions were produced, one well known and the other little more than an optional paint job.
New tinted glass lift-out roof panels were wired into the standard anti-theft system.
A 24-gallon (US) fuel tank replaced the former 17-gallon (US) tank, filling space made available by a new temporary spare tire.
Inside was a restyled, padded instrument panel with face-mounted round instruments and a new locking glove box that replaced the former map pocket.
The 4ir conrestyled interior had more accessible rear storage area with a roll shade to hide luggage.
The wiper-washer control was moved from the steering column back to the instrument panel, but turn signal and headlight-dimmer controls remained on the steering column.
Door trim was now of a cut-and-sew design with sott expanded vinyl or cloth.
As in 1977, the seats had leather side bolsters, with either leather or cloth seating areas in a fine rib pattern.
Corvette's optional L82 high-performance 350-cid V-8 reached 220 hp as a result of a new dual-snorkel cold-air intake system, larger-diameter exhaust and tailpipes and lower-restriction mufflers.
The automatic transmission used with the optional V-8 lost weight and had a low-inertia, high-stall torque converter.
Base engines used a Muncie four-speed manual gear box with higher first-second gear ratios than before; the luced: performance V-8 used a close-ratio Borg-Warner.
The axle ratios used in cars sold in California and high-altitude counties were switched from 3.08:1 to 3.55:1.
A total of 12,739 had the optional L82 engines, 3,385 Corvettes had the M21 four-speed close-ratio gearbox, and 38,614 had automatic transmission.
Glass roof panels, which had been promised earlier, actually became available this year.
What Chevrolet described as "aggressive" 60- series white-letter tires also joined the option list for the first time.
An optional AM/FM-CB stereo radio used a tn-band power antenna on the rear deck.
Each of this year's Corvettes could have Silver Anniversary emblems on the nose and rear deck.
A total of 15,283 displayed the $399 special two-tone "Silver Anniversary" paint combination with silver metallic on top and charcoal silver on the lower body.
Pinstripes accentuated the fender's upper profiles, wheel openings, front fender vents, hood, and rear license cavity.
Interiors were also silver.
Various other options were required, including aluminum wheels.
For a considerably higher price, buyers could have the Limited Edition replica of the Indy Pace Car with distinctive black-over-silver paint and red accent striping.
Equipment in this "Indy Package" (RPO code Z78) included a special silver interior with new lightweight high-back seats, special front and rear spoilers, P255/60R1 5 white-letter tires on alloy wheels and lift-off glass canopy roof panels.
The Indy Pace Car package's content included nearly all Corvette options, plus special decals (unless the customer specified that they be omitted).
Upholstery was silver leather or leather with smoke gray cloth inserts.
The year's 11 Corvette colors were
Classic White
Silver
Silver Anniversary
Black
Corvette Light Blue
Corvette Yellow
Corvette Light Beige
Corvette Red
Corvette Mahogany
Corveffe Dark Blue
Corvette Dark Brown
Interior colors were Black; Dark Blue; Light Beige; Red; Mahogany; and Oyster.
I.D. NUMBERS
The serial number [Vehicle Identification Number -- VIN] was stamped on a plate on the inner vertical surface of the left windshield pillar visible through the windshield.
Serial numbers ranged from 1Z87*8S400001 to 1Z87*8S440274 Position Character Description
1 1 Chevrolet Division
2 Z Corvette
87 coupe
5 * Engine type where * is replaced by the following
L = L48 350-cid V8, 175-hp, 4-barrel
H = L82 350-cid V8, 220-hp, 4-barrel
6 8 1978
7 S Assembled in St. Louis, MO
8 to 13 400001 to 446558 production sequence
Engine serial number began 0001001
Corvette engines have the last six digits of the VIN stamped on the block just ahead of the cylinder head on the right-hand side combined with a three-letter engine code suffix
Also cast into the top rear of the block is a four-symbol code indicating when the engine was built
The first letter of the date code shows the month the block was cast
The one or two numbers shows the month
The last digit shows the year
Engine suffixes: Code Engine Horsepower Compression Transmission Fuel Supply Emission Control System
CHW L48 350-cid 185-hp V-8 8.2:1 manual four-barrel carburetor
CLM L48 350-cid 185-hp V-8 8.2:1 automatic four-barrel carburetor
CLR L48 350-cid 175-hp V-8 8.2:1 automatic four-barrel carburetor California
CLS L48 350-cid 175-hp V-8 8.2:1 automatic four-barrel carburetor high-altitude
CMR L82 350-cid 220-hp V-8 8.9:1 manual four-barrel carburetor
CMS L82 350-cid 220-hp V-8 8.9:1 automatic four-barrel carburetor
CUT L48 350-cid 185-hp V-8 8.2:1 automatic four-barrel carburetor
The body number plate was located on the engine side of the cowl.
The Fisher Body Style Number 78-1YZ37 identifies a Corvette Stingray coupe
The body number is the production serial number of the body.
The trim number indicates the interior trim color and material.
The eleven 1978 Corvette exterior colors were:
10 = Classic White
13 = Silver;
13/07 = Siver Anniversary
19 = Black
26 = Corvette Light Blue
52 = Corvette Yellow
59 = Corvette Light Beige
72 = Corvette Red
82 = Corvette Mahogany
83 = Corvette Dark Blue
89 = Corvette Dark Brown.
Upholstery Codes Color Cloth & Leather Upholstery Leather Upholstery
Oyster 12C 122
Silver 15C 152
Black 19C 192
Dark Blue 29C 292
Light Beige 59C 592
Dark Brown 69C 692
Red 72C 722
Mahogany 76C 762
IDENTIFICATION
Model Model No. Body/Style No. Body Type Factory Price Shipping Weight Production Total
1978 Corvette 1Y Z87
2-dr. Sport Coupe - 2 passenger $9446 3401 40,274
1978 Limited Edition 1Y Z87/Z78
2-dr. Sport Coupe - 2 passenger $13,653 3401 6,502
ENGINE
Feature Standard Engine (RPO L48) Standard Engine (RPO L48) Optional Engine (RPO L82)
Type V-8, 90-degree Overhead valve
Block Cast iron block
Displacement 350 cid (5.7 liters) 350 cid (5.7 liters) 350 cid (5.7 liters)
Bore & Stroke 4.00 x 3.48" 4.00 x 3.48" 4.00 x 3.48"
Compression ratio 8.2:1 8.2:1 8.9:1
Brake horsepower 185 @ 4000 175 @ 4000 220 @ 5200
Torque 280 lb-ft @ 2400 270 lb-ft @ 2400 260 lb-ft @ 3600
Main bearing five
Valve lifters hydraulic
Fuel supply Rochester M4MC Rochester M4MC California emissions and high-altitude emissions Rochester M4MC
TRANSMISSION
Standard Manual Transmission
four-speed fully-synchronized
floor-mounted gear shifter
gear ratios
1st = 2.85:1
2nd = 2.02:1
3rd = 1.35:1
4th = 1.00:1
Rev = 2.85:1
Final drive ratio: 3.36:1 or 3.70:1
Optional Manual Transmission
close ratio four-speed fully-synchronized
floor-mounted gear shifter
gear ratios
1st = 2.43:1
2nd = 1.61:1
3rd = 1.23:1
4th = 1.00:1
Rev = 2.35:1
Final drive ratio: 3.36:1 or 3.70:1
Automatic Transmission
Three-speed Turbo Hydra-Matic
floor-mounted gear shifter
gear ratios
1st = 2.52:1
2nd = 1.52:1
3rd = 1.00:1
Rev = 1.94:1
Final drive ratio: 3.08:1 or 3.55:1
CHASSIS
Feature Coupe
Wheelbase 98 inches (2.489 m)
Overall length 185.2 inches (4.704 m)
Overall width 69.0 inches (1.753 m)
Overall height 48 inches (1.219 m)
Ground Clearance 4.5 inches (11.4 cm)
Front tread 58.7 inches (1.491 m)
Rear tread 59.5 inches (1.511 m)
Tires P277/70R-15 steel-belted radial
Positraction standard
Steering recirulating ball
Front suspension Independent, unequal-length control arms with ball joints, coil springs, and stabilizer bar
Rear suspension Independent, trailing link, transverse semi-elliptic leaf springs
Brakes Hydraulic, vented four wheel discs; 11.75-inch diameter, single calipers
Ignition HEI electronic
Body construction Separate fiberglass body and box-type ladder frame with cross-members
Fuel tank 24 US Gal (20 Imp Gal) (91 liters)
OPTIONS
RPO A31 Electric power windows ($130)
RPO AU3 Power door locks ($120)
RPO B2Z Silver Anniversary Paint ($399)
RPO CC1 Removable glass roof panels ($349)
RPO C60 Air conditioning ($605)
RPO D35 Sport mirrors ($40)
RPO FE7 Gymkhana suspension ($41)
RPO G95 Positraction axle, optional highway ratio ($15)
RPO K30 Cruise Control ($99)
RPO L82 350-cid 210-hp V-8 ($525)
RPO M21 Four-speed close-ratio manual transmission (no cost option)
RPO MX1 Turbo Hydra-Matic automatic transmission (no cost option).
RPO N37 Tilt-telescopic steering column ($175)
RPO QBS P255/60R-15 White-letter steel-belted radial tires ($216.32)
RPO QGR P255/70R-15 White-letter steel-belted radial tires ($51)
RPO UA1 Heavy-duty battery ($18)
RPO UM2 AM-FM stereo radio with tape system ($419)
RPO UP6 AM-FM stereo radio with CB system ($638)
RPO U58 AM-FM stereo radio ($286)
RPO U69 AM-FM radio ($199)
RPO U75 Power antenna ($49)
RPO U81 Dual rear speakers ($49).
RPO YJ8 Aluminum wheels ($340)
RPO ZN1 Trailering package ($89)
RPO ZX2 Convenience group ($84).
HISTORICAL NOTES
Introduced: October 6,1977
Model-year production: 46,772 (but some industry sources have reported a total of 47,667)
Calendar-year production: 48,522
Calendar-year sales by U.S. dealers: 42,247
Model year sales by U.S. dealers: 43,106
The limited-edition Indianapolis 500 Pace Car replica was created to commemorate the selection of Corvette as the pace car for the 62nd Indianapolis 500 race on May 28, 1978.
A production run of 2,500 was planned, but so many potential buyers who saw it at the New York Auto Show in February wanted one that the goal quickly expanded to 6,500 or roughly one for every Chevrolet dealer.
Buyers also had to endure a selection of "forced RPOs" (items installed at the factory whether wanted or not).
The mandatory extras included power windows, air conditioning, sport mirrors, a tilt-telescope steering wheel, a rear defogger, an AM/FM stereo with either an 8-track tape player or CB radio, plus power door locks, and a heavy-duty battery.
Before long, the original $13,653 list price meant little, as speculators eagerly paid double that amount and more.
Later the price retreated to around the original list.
Even though so many were built, the Indy Pace Car is still a desirable model.
Dave McLelIan became head of engineering for Corvettes and worked on the next-generation models.
12-19-2009, 11:28 AM
#27
I was being serious. Aside from nostalgia, there's very little reason to spend money on the dealer invoice or a load of books to decode a car. Physical evidence on the car plus a little research on the intraweeb will quickly reveal all the details.
12-19-2009, 11:28 AM
#28
Burning Brakes
Thread Starter
Member Since: Jun 2008
Location: Salem Ohio
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Ill just shut up and replace power steering hoses and tear apart the steering column now.
The car has dual rear speakers, a/c, aluminum rims, and tilt steering.
The car has dual rear speakers, a/c, aluminum rims, and tilt steering.
12-19-2009, 02:01 PM
#29
Team Owner
Member Since: Jun 2000
Location: Southbound
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Cruise-In II Veteran
BUT...$50 for the invoice would answer his questions for his '78.
12-19-2009, 02:32 PM
#30
Melting Slicks
This is what you will get for your $50. Luckily I got it when it was free
12-19-2009, 02:34 PM
#31
I took the hmmm..... to mean 'ouch'.
My books show the silver with oyster gut to be standard production, nothing unusual. After the two tone cars and the monotone colours black or white, silver was the most popular that year.
12-19-2009, 04:26 PM
#32
Burning Brakes
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12-06-2015, 09:12 AM
#33
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Can I get some help on this VIN and Trim tags??
1978 CORVETTE
To mark Corvette's 25th anniversary, the 1978 model received a major aerodynamic restyling with large wraparound back window and a fastback roofline.
This was the Corvette's first restyling since 1968. Two special editions were produced, one well known and the other little more than an optional paint job.
New tinted glass lift-out roof panels were wired into the standard anti-theft system.
A 24-gallon (US) fuel tank replaced the former 17-gallon (US) tank, filling space made available by a new temporary spare tire.
Inside was a restyled, padded instrument panel with face-mounted round instruments and a new locking glove box that replaced the former map pocket.
The 4ir conrestyled interior had more accessible rear storage area with a roll shade to hide luggage.
The wiper-washer control was moved from the steering column back to the instrument panel, but turn signal and headlight-dimmer controls remained on the steering column.
Door trim was now of a cut-and-sew design with sott expanded vinyl or cloth.
As in 1977, the seats had leather side bolsters, with either leather or cloth seating areas in a fine rib pattern.
Corvette's optional L82 high-performance 350-cid V-8 reached 220 hp as a result of a new dual-snorkel cold-air intake system, larger-diameter exhaust and tailpipes and lower-restriction mufflers.
The automatic transmission used with the optional V-8 lost weight and had a low-inertia, high-stall torque converter.
Base engines used a Muncie four-speed manual gear box with higher first-second gear ratios than before; the luced: performance V-8 used a close-ratio Borg-Warner.
The axle ratios used in cars sold in California and high-altitude counties were switched from 3.08:1 to 3.55:1.
A total of 12,739 had the optional L82 engines, 3,385 Corvettes had the M21 four-speed close-ratio gearbox, and 38,614 had automatic transmission.
Glass roof panels, which had been promised earlier, actually became available this year.
What Chevrolet described as "aggressive" 60- series white-letter tires also joined the option list for the first time.
An optional AM/FM-CB stereo radio used a tn-band power antenna on the rear deck.
Each of this year's Corvettes could have Silver Anniversary emblems on the nose and rear deck.
A total of 15,283 displayed the $399 special two-tone "Silver Anniversary" paint combination with silver metallic on top and charcoal silver on the lower body.
Pinstripes accentuated the fender's upper profiles, wheel openings, front fender vents, hood, and rear license cavity.
Interiors were also silver.
Various other options were required, including aluminum wheels.
For a considerably higher price, buyers could have the Limited Edition replica of the Indy Pace Car with distinctive black-over-silver paint and red accent striping.
Equipment in this "Indy Package" (RPO code Z78) included a special silver interior with new lightweight high-back seats, special front and rear spoilers, P255/60R1 5 white-letter tires on alloy wheels and lift-off glass canopy roof panels.
The Indy Pace Car package's content included nearly all Corvette options, plus special decals (unless the customer specified that they be omitted).
Upholstery was silver leather or leather with smoke gray cloth inserts.
The year's 11 Corvette colors were
Classic White
Silver
Silver Anniversary
Black
Corvette Light Blue
Corvette Yellow
Corvette Light Beige
Corvette Red
Corvette Mahogany
Corveffe Dark Blue
Corvette Dark Brown
Interior colors were Black; Dark Blue; Light Beige; Red; Mahogany; and Oyster.
I.D. NUMBERS
The serial number [Vehicle Identification Number -- VIN] was stamped on a plate on the inner vertical surface of the left windshield pillar visible through the windshield.
Serial numbers ranged from 1Z87*8S400001 to 1Z87*8S440274 Position Character Description
1 1 Chevrolet Division
2 Z Corvette
87 coupe
5 * Engine type where * is replaced by the following
L = L48 350-cid V8, 175-hp, 4-barrel
H = L82 350-cid V8, 220-hp, 4-barrel
6 8 1978
7 S Assembled in St. Louis, MO
8 to 13 400001 to 446558 production sequence
Engine serial number began 0001001
Corvette engines have the last six digits of the VIN stamped on the block just ahead of the cylinder head on the right-hand side combined with a three-letter engine code suffix
Also cast into the top rear of the block is a four-symbol code indicating when the engine was built
The first letter of the date code shows the month the block was cast
The one or two numbers shows the month
The last digit shows the year
Engine suffixes: Code Engine Horsepower Compression Transmission Fuel Supply Emission Control System
CHW L48 350-cid 185-hp V-8 8.2:1 manual four-barrel carburetor
CLM L48 350-cid 185-hp V-8 8.2:1 automatic four-barrel carburetor
CLR L48 350-cid 175-hp V-8 8.2:1 automatic four-barrel carburetor California
CLS L48 350-cid 175-hp V-8 8.2:1 automatic four-barrel carburetor high-altitude
CMR L82 350-cid 220-hp V-8 8.9:1 manual four-barrel carburetor
CMS L82 350-cid 220-hp V-8 8.9:1 automatic four-barrel carburetor
CUT L48 350-cid 185-hp V-8 8.2:1 automatic four-barrel carburetor
The body number plate was located on the engine side of the cowl.
The Fisher Body Style Number 78-1YZ37 identifies a Corvette Stingray coupe
The body number is the production serial number of the body.
The trim number indicates the interior trim color and material.
The eleven 1978 Corvette exterior colors were:
10 = Classic White
13 = Silver;
13/07 = Siver Anniversary
19 = Black
26 = Corvette Light Blue
52 = Corvette Yellow
59 = Corvette Light Beige
72 = Corvette Red
82 = Corvette Mahogany
83 = Corvette Dark Blue
89 = Corvette Dark Brown.
Upholstery Codes Color Cloth & Leather Upholstery Leather Upholstery
Oyster 12C 122
Silver 15C 152
Black 19C 192
Dark Blue 29C 292
Light Beige 59C 592
Dark Brown 69C 692
Red 72C 722
Mahogany 76C 762
IDENTIFICATION
Model Model No. Body/Style No. Body Type Factory Price Shipping Weight Production Total
1978 Corvette 1Y Z87
2-dr. Sport Coupe - 2 passenger $9446 3401 40,274
1978 Limited Edition 1Y Z87/Z78
2-dr. Sport Coupe - 2 passenger $13,653 3401 6,502
ENGINE
Feature Standard Engine (RPO L48) Standard Engine (RPO L48) Optional Engine (RPO L82)
Type V-8, 90-degree Overhead valve
Block Cast iron block
Displacement 350 cid (5.7 liters) 350 cid (5.7 liters) 350 cid (5.7 liters)
Bore & Stroke 4.00 x 3.48" 4.00 x 3.48" 4.00 x 3.48"
Compression ratio 8.2:1 8.2:1 8.9:1
Brake horsepower 185 @ 4000 175 @ 4000 220 @ 5200
Torque 280 lb-ft @ 2400 270 lb-ft @ 2400 260 lb-ft @ 3600
Main bearing five
Valve lifters hydraulic
Fuel supply Rochester M4MC Rochester M4MC California emissions and high-altitude emissions Rochester M4MC
TRANSMISSION
Standard Manual Transmission
four-speed fully-synchronized
floor-mounted gear shifter
gear ratios
1st = 2.85:1
2nd = 2.02:1
3rd = 1.35:1
4th = 1.00:1
Rev = 2.85:1
Final drive ratio: 3.36:1 or 3.70:1
Optional Manual Transmission
close ratio four-speed fully-synchronized
floor-mounted gear shifter
gear ratios
1st = 2.43:1
2nd = 1.61:1
3rd = 1.23:1
4th = 1.00:1
Rev = 2.35:1
Final drive ratio: 3.36:1 or 3.70:1
Automatic Transmission
Three-speed Turbo Hydra-Matic
floor-mounted gear shifter
gear ratios
1st = 2.52:1
2nd = 1.52:1
3rd = 1.00:1
Rev = 1.94:1
Final drive ratio: 3.08:1 or 3.55:1
CHASSIS
Feature Coupe
Wheelbase 98 inches (2.489 m)
Overall length 185.2 inches (4.704 m)
Overall width 69.0 inches (1.753 m)
Overall height 48 inches (1.219 m)
Ground Clearance 4.5 inches (11.4 cm)
Front tread 58.7 inches (1.491 m)
Rear tread 59.5 inches (1.511 m)
Tires P277/70R-15 steel-belted radial
Positraction standard
Steering recirulating ball
Front suspension Independent, unequal-length control arms with ball joints, coil springs, and stabilizer bar
Rear suspension Independent, trailing link, transverse semi-elliptic leaf springs
Brakes Hydraulic, vented four wheel discs; 11.75-inch diameter, single calipers
Ignition HEI electronic
Body construction Separate fiberglass body and box-type ladder frame with cross-members
Fuel tank 24 US Gal (20 Imp Gal) (91 liters)
OPTIONS
RPO A31 Electric power windows ($130)
RPO AU3 Power door locks ($120)
RPO B2Z Silver Anniversary Paint ($399)
RPO CC1 Removable glass roof panels ($349)
RPO C60 Air conditioning ($605)
RPO D35 Sport mirrors ($40)
RPO FE7 Gymkhana suspension ($41)
RPO G95 Positraction axle, optional highway ratio ($15)
RPO K30 Cruise Control ($99)
RPO L82 350-cid 210-hp V-8 ($525)
RPO M21 Four-speed close-ratio manual transmission (no cost option)
RPO MX1 Turbo Hydra-Matic automatic transmission (no cost option).
RPO N37 Tilt-telescopic steering column ($175)
RPO QBS P255/60R-15 White-letter steel-belted radial tires ($216.32)
RPO QGR P255/70R-15 White-letter steel-belted radial tires ($51)
RPO UA1 Heavy-duty battery ($18)
RPO UM2 AM-FM stereo radio with tape system ($419)
RPO UP6 AM-FM stereo radio with CB system ($638)
RPO U58 AM-FM stereo radio ($286)
RPO U69 AM-FM radio ($199)
RPO U75 Power antenna ($49)
RPO U81 Dual rear speakers ($49).
RPO YJ8 Aluminum wheels ($340)
RPO ZN1 Trailering package ($89)
RPO ZX2 Convenience group ($84).
HISTORICAL NOTES
Introduced: October 6,1977
Model-year production: 46,772 (but some industry sources have reported a total of 47,667)
Calendar-year production: 48,522
Calendar-year sales by U.S. dealers: 42,247
Model year sales by U.S. dealers: 43,106
The limited-edition Indianapolis 500 Pace Car replica was created to commemorate the selection of Corvette as the pace car for the 62nd Indianapolis 500 race on May 28, 1978.
A production run of 2,500 was planned, but so many potential buyers who saw it at the New York Auto Show in February wanted one that the goal quickly expanded to 6,500 or roughly one for every Chevrolet dealer.
Buyers also had to endure a selection of "forced RPOs" (items installed at the factory whether wanted or not).
The mandatory extras included power windows, air conditioning, sport mirrors, a tilt-telescope steering wheel, a rear defogger, an AM/FM stereo with either an 8-track tape player or CB radio, plus power door locks, and a heavy-duty battery.
Before long, the original $13,653 list price meant little, as speculators eagerly paid double that amount and more.
Later the price retreated to around the original list.
Even though so many were built, the Indy Pace Car is still a desirable model.
Dave McLelIan became head of engineering for Corvettes and worked on the next-generation models.
To mark Corvette's 25th anniversary, the 1978 model received a major aerodynamic restyling with large wraparound back window and a fastback roofline.
This was the Corvette's first restyling since 1968. Two special editions were produced, one well known and the other little more than an optional paint job.
New tinted glass lift-out roof panels were wired into the standard anti-theft system.
A 24-gallon (US) fuel tank replaced the former 17-gallon (US) tank, filling space made available by a new temporary spare tire.
Inside was a restyled, padded instrument panel with face-mounted round instruments and a new locking glove box that replaced the former map pocket.
The 4ir conrestyled interior had more accessible rear storage area with a roll shade to hide luggage.
The wiper-washer control was moved from the steering column back to the instrument panel, but turn signal and headlight-dimmer controls remained on the steering column.
Door trim was now of a cut-and-sew design with sott expanded vinyl or cloth.
As in 1977, the seats had leather side bolsters, with either leather or cloth seating areas in a fine rib pattern.
Corvette's optional L82 high-performance 350-cid V-8 reached 220 hp as a result of a new dual-snorkel cold-air intake system, larger-diameter exhaust and tailpipes and lower-restriction mufflers.
The automatic transmission used with the optional V-8 lost weight and had a low-inertia, high-stall torque converter.
Base engines used a Muncie four-speed manual gear box with higher first-second gear ratios than before; the luced: performance V-8 used a close-ratio Borg-Warner.
The axle ratios used in cars sold in California and high-altitude counties were switched from 3.08:1 to 3.55:1.
A total of 12,739 had the optional L82 engines, 3,385 Corvettes had the M21 four-speed close-ratio gearbox, and 38,614 had automatic transmission.
Glass roof panels, which had been promised earlier, actually became available this year.
What Chevrolet described as "aggressive" 60- series white-letter tires also joined the option list for the first time.
An optional AM/FM-CB stereo radio used a tn-band power antenna on the rear deck.
Each of this year's Corvettes could have Silver Anniversary emblems on the nose and rear deck.
A total of 15,283 displayed the $399 special two-tone "Silver Anniversary" paint combination with silver metallic on top and charcoal silver on the lower body.
Pinstripes accentuated the fender's upper profiles, wheel openings, front fender vents, hood, and rear license cavity.
Interiors were also silver.
Various other options were required, including aluminum wheels.
For a considerably higher price, buyers could have the Limited Edition replica of the Indy Pace Car with distinctive black-over-silver paint and red accent striping.
Equipment in this "Indy Package" (RPO code Z78) included a special silver interior with new lightweight high-back seats, special front and rear spoilers, P255/60R1 5 white-letter tires on alloy wheels and lift-off glass canopy roof panels.
The Indy Pace Car package's content included nearly all Corvette options, plus special decals (unless the customer specified that they be omitted).
Upholstery was silver leather or leather with smoke gray cloth inserts.
The year's 11 Corvette colors were
Classic White
Silver
Silver Anniversary
Black
Corvette Light Blue
Corvette Yellow
Corvette Light Beige
Corvette Red
Corvette Mahogany
Corveffe Dark Blue
Corvette Dark Brown
Interior colors were Black; Dark Blue; Light Beige; Red; Mahogany; and Oyster.
I.D. NUMBERS
The serial number [Vehicle Identification Number -- VIN] was stamped on a plate on the inner vertical surface of the left windshield pillar visible through the windshield.
Serial numbers ranged from 1Z87*8S400001 to 1Z87*8S440274 Position Character Description
1 1 Chevrolet Division
2 Z Corvette
87 coupe
5 * Engine type where * is replaced by the following
L = L48 350-cid V8, 175-hp, 4-barrel
H = L82 350-cid V8, 220-hp, 4-barrel
6 8 1978
7 S Assembled in St. Louis, MO
8 to 13 400001 to 446558 production sequence
Engine serial number began 0001001
Corvette engines have the last six digits of the VIN stamped on the block just ahead of the cylinder head on the right-hand side combined with a three-letter engine code suffix
Also cast into the top rear of the block is a four-symbol code indicating when the engine was built
The first letter of the date code shows the month the block was cast
The one or two numbers shows the month
The last digit shows the year
Engine suffixes: Code Engine Horsepower Compression Transmission Fuel Supply Emission Control System
CHW L48 350-cid 185-hp V-8 8.2:1 manual four-barrel carburetor
CLM L48 350-cid 185-hp V-8 8.2:1 automatic four-barrel carburetor
CLR L48 350-cid 175-hp V-8 8.2:1 automatic four-barrel carburetor California
CLS L48 350-cid 175-hp V-8 8.2:1 automatic four-barrel carburetor high-altitude
CMR L82 350-cid 220-hp V-8 8.9:1 manual four-barrel carburetor
CMS L82 350-cid 220-hp V-8 8.9:1 automatic four-barrel carburetor
CUT L48 350-cid 185-hp V-8 8.2:1 automatic four-barrel carburetor
The body number plate was located on the engine side of the cowl.
The Fisher Body Style Number 78-1YZ37 identifies a Corvette Stingray coupe
The body number is the production serial number of the body.
The trim number indicates the interior trim color and material.
The eleven 1978 Corvette exterior colors were:
10 = Classic White
13 = Silver;
13/07 = Siver Anniversary
19 = Black
26 = Corvette Light Blue
52 = Corvette Yellow
59 = Corvette Light Beige
72 = Corvette Red
82 = Corvette Mahogany
83 = Corvette Dark Blue
89 = Corvette Dark Brown.
Upholstery Codes Color Cloth & Leather Upholstery Leather Upholstery
Oyster 12C 122
Silver 15C 152
Black 19C 192
Dark Blue 29C 292
Light Beige 59C 592
Dark Brown 69C 692
Red 72C 722
Mahogany 76C 762
IDENTIFICATION
Model Model No. Body/Style No. Body Type Factory Price Shipping Weight Production Total
1978 Corvette 1Y Z87
2-dr. Sport Coupe - 2 passenger $9446 3401 40,274
1978 Limited Edition 1Y Z87/Z78
2-dr. Sport Coupe - 2 passenger $13,653 3401 6,502
ENGINE
Feature Standard Engine (RPO L48) Standard Engine (RPO L48) Optional Engine (RPO L82)
Type V-8, 90-degree Overhead valve
Block Cast iron block
Displacement 350 cid (5.7 liters) 350 cid (5.7 liters) 350 cid (5.7 liters)
Bore & Stroke 4.00 x 3.48" 4.00 x 3.48" 4.00 x 3.48"
Compression ratio 8.2:1 8.2:1 8.9:1
Brake horsepower 185 @ 4000 175 @ 4000 220 @ 5200
Torque 280 lb-ft @ 2400 270 lb-ft @ 2400 260 lb-ft @ 3600
Main bearing five
Valve lifters hydraulic
Fuel supply Rochester M4MC Rochester M4MC California emissions and high-altitude emissions Rochester M4MC
TRANSMISSION
Standard Manual Transmission
four-speed fully-synchronized
floor-mounted gear shifter
gear ratios
1st = 2.85:1
2nd = 2.02:1
3rd = 1.35:1
4th = 1.00:1
Rev = 2.85:1
Final drive ratio: 3.36:1 or 3.70:1
Optional Manual Transmission
close ratio four-speed fully-synchronized
floor-mounted gear shifter
gear ratios
1st = 2.43:1
2nd = 1.61:1
3rd = 1.23:1
4th = 1.00:1
Rev = 2.35:1
Final drive ratio: 3.36:1 or 3.70:1
Automatic Transmission
Three-speed Turbo Hydra-Matic
floor-mounted gear shifter
gear ratios
1st = 2.52:1
2nd = 1.52:1
3rd = 1.00:1
Rev = 1.94:1
Final drive ratio: 3.08:1 or 3.55:1
CHASSIS
Feature Coupe
Wheelbase 98 inches (2.489 m)
Overall length 185.2 inches (4.704 m)
Overall width 69.0 inches (1.753 m)
Overall height 48 inches (1.219 m)
Ground Clearance 4.5 inches (11.4 cm)
Front tread 58.7 inches (1.491 m)
Rear tread 59.5 inches (1.511 m)
Tires P277/70R-15 steel-belted radial
Positraction standard
Steering recirulating ball
Front suspension Independent, unequal-length control arms with ball joints, coil springs, and stabilizer bar
Rear suspension Independent, trailing link, transverse semi-elliptic leaf springs
Brakes Hydraulic, vented four wheel discs; 11.75-inch diameter, single calipers
Ignition HEI electronic
Body construction Separate fiberglass body and box-type ladder frame with cross-members
Fuel tank 24 US Gal (20 Imp Gal) (91 liters)
OPTIONS
RPO A31 Electric power windows ($130)
RPO AU3 Power door locks ($120)
RPO B2Z Silver Anniversary Paint ($399)
RPO CC1 Removable glass roof panels ($349)
RPO C60 Air conditioning ($605)
RPO D35 Sport mirrors ($40)
RPO FE7 Gymkhana suspension ($41)
RPO G95 Positraction axle, optional highway ratio ($15)
RPO K30 Cruise Control ($99)
RPO L82 350-cid 210-hp V-8 ($525)
RPO M21 Four-speed close-ratio manual transmission (no cost option)
RPO MX1 Turbo Hydra-Matic automatic transmission (no cost option).
RPO N37 Tilt-telescopic steering column ($175)
RPO QBS P255/60R-15 White-letter steel-belted radial tires ($216.32)
RPO QGR P255/70R-15 White-letter steel-belted radial tires ($51)
RPO UA1 Heavy-duty battery ($18)
RPO UM2 AM-FM stereo radio with tape system ($419)
RPO UP6 AM-FM stereo radio with CB system ($638)
RPO U58 AM-FM stereo radio ($286)
RPO U69 AM-FM radio ($199)
RPO U75 Power antenna ($49)
RPO U81 Dual rear speakers ($49).
RPO YJ8 Aluminum wheels ($340)
RPO ZN1 Trailering package ($89)
RPO ZX2 Convenience group ($84).
HISTORICAL NOTES
Introduced: October 6,1977
Model-year production: 46,772 (but some industry sources have reported a total of 47,667)
Calendar-year production: 48,522
Calendar-year sales by U.S. dealers: 42,247
Model year sales by U.S. dealers: 43,106
The limited-edition Indianapolis 500 Pace Car replica was created to commemorate the selection of Corvette as the pace car for the 62nd Indianapolis 500 race on May 28, 1978.
A production run of 2,500 was planned, but so many potential buyers who saw it at the New York Auto Show in February wanted one that the goal quickly expanded to 6,500 or roughly one for every Chevrolet dealer.
Buyers also had to endure a selection of "forced RPOs" (items installed at the factory whether wanted or not).
The mandatory extras included power windows, air conditioning, sport mirrors, a tilt-telescope steering wheel, a rear defogger, an AM/FM stereo with either an 8-track tape player or CB radio, plus power door locks, and a heavy-duty battery.
Before long, the original $13,653 list price meant little, as speculators eagerly paid double that amount and more.
Later the price retreated to around the original list.
Even though so many were built, the Indy Pace Car is still a desirable model.
Dave McLelIan became head of engineering for Corvettes and worked on the next-generation models.
Hello Im having a bit of troublr decoding my VIN and my Trim. I own a 75 base coupe, 4speed in orange with med brown interior. Just wanted to know if some of these codes match.
Trim tags; Chevrolet E21, TRIM 652, PAINT 70L
VIN # 1Z37J5S416060
ANY HELP YOU CAN GIVE WOULD BE VERY MUCH APPRECIATED TY
12-06-2015, 09:36 AM
#34
Team Owner
Member Since: Jun 2000
Location: Southbound
Posts: 38,928
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Cruise-In II Veteran
...Hello Im having a bit of troublr decoding my VIN and my Trim. I own a 75 base coupe, 4speed in orange with med brown interior. Just wanted to know if some of these codes match.
Trim tags; Chevrolet E21, TRIM 652, PAINT 70L
VIN # 1Z37J5S416060
ANY HELP YOU CAN GIVE WOULD BE VERY MUCH APPRECIATED TY...
Trim tags; Chevrolet E21, TRIM 652, PAINT 70L
VIN # 1Z37J5S416060
ANY HELP YOU CAN GIVE WOULD BE VERY MUCH APPRECIATED TY
...652 is the code for medium saddle leather interior.
70L is the code for orange flame exterior paint.
The Corvette Black Book and other sources list the codes by model year.
12-06-2015, 10:05 AM
#35
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Member Since: Mar 2014
Location: Williston Park New York
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E21 is the time build code, February 21, 1975. E for fifth month of production; 21 for the day of the month when your car reached the station on the assembly line where the trim tag was attached.
652 is the code for medium saddle leather interior.
70L is the code for orange flame exterior paint.
The Corvette Black Book and other sources list the codes by model year.
652 is the code for medium saddle leather interior.
70L is the code for orange flame exterior paint.
The Corvette Black Book and other sources list the codes by model year.
12-07-2015, 09:15 AM
#36
Team Owner
Member Since: Jun 2000
Location: Southbound
Posts: 38,928
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12-08-2015, 11:25 AM
#38
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Member Since: Jul 2000
Location: About 1100 miles from where I call home. Blue lives matter.
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Hello Im having a bit of troublr decoding my VIN and my Trim. I own a 75 base coupe, 4speed in orange with med brown interior. Just wanted to know if some of these codes match.
Trim tags; Chevrolet E21, TRIM 652, PAINT 70L
VIN # 1Z37J5S416060
ANY HELP YOU CAN GIVE WOULD BE VERY MUCH APPRECIATED TY
Trim tags; Chevrolet E21, TRIM 652, PAINT 70L
VIN # 1Z37J5S416060
ANY HELP YOU CAN GIVE WOULD BE VERY MUCH APPRECIATED TY
