I was looking at a list of RPO codes what codes should be present to have the Z51 suspension package with an automatic transmission.
My car seems to have just about every options that was available and a couple of codes that are not listed that I have no idea what they are.

 

Not sure what you are looking for. Auto trans seems to be code M30 and Z51 was the RPO for handling pkg. Included special springs and stabilizer bars. G92 performance axle pkg required for auto trans, according to the Corvette Black Book. Here is list of options: https://www.corvetteactioncenter.com.../2002rpos.html

 

Well that was what I was thinking. But the list I was looking at does not list a Z51 code
It has the G92
I see it on the list that was provided. My car does not have that code.

 

 

The G92 RPO code is for the performance 3.15 axle ratio for automatics. If your RPO sticker does not list a Z51 code, then you do not have that option on the car.

Not sure what listing of codes you have looked at, but here are the RPO options for a 2002 that were picked up from another Corvette-related site. 2002 Corvette RPO Codes

AAB
Memory, Driver Convenience Package
AG2
Power Seat Adjuster, Passenger, Multi-Directional
AK5
Inflatable Restraint System, Driver and Passenger
AQ9
Reclining Bucket Seat, Driver and Passenger
AR9
Reclining Bucket Seat, Driver and Passenger, European Style
AX4
Conversion, Seat Belt, Manual, European
BCC
Cylinder Unit Passenger Door
B34
Covering Front Floor Mats, Carpeted Insert
B4H
Modification, Noise Control, Export
CC3
Roof Panel, Removable Transparent
CF7
Roof Panel, Removable Non-Transparent
CJ2
HVAC System, Air Conditioning, Automatic Temperature Control, Dual Zone
C05
Roof, Convertible Folding
C2L
Roof Package, Dual Removable, Consists of CC3 and CF7
C60
HVAC System, Air Conditioning, Manual Control
DD0
Mirror, Outside, LH & RH, Remote Control, Electric, Heated, Light Sensitive
DD8
Mirror, Inside, R/V Light Sensitive
DL5
Decal Roadside Service Information
DL8
Mirrors, Outside, LH/RH Remote Control Electric, Heated
DS1
Sales Diplomatic
D42
Shade, Rear Compartment, Includes Cargo Net
E45
Cover, Convertible Top, Protective
FE1
Suspension System
FE3
Suspension System, Sport
FE4
Suspension System, Special Ride and Handling
F45
Chassis, Continuously Variable, Real Time Damping
GU2
Axle, Rear, 2.73 Ratio
GU6
Axle, Rear, 3.42 Ratio
G90
Axle, Rear, 3.15 Ratio
G92
Axle, Rear, Performance Ratio
JL4
Control, Active Brake
JL9
Brake System, Power, Front and Rear Disc, Antilock, 4-Wheel
K05
Heater, Engine Block
K29
Module, Power train Control
K63
Generator, 110 Amp
LS1
Engine, Gas, 8-Cylinder, 5.7L, SFI, Aluminum
LS6
Engine, Gas, 8-Cylinder, 5.7L, SFI, Aluminum HO
MM6
Transmission, Manual 6-Speed, 85mm, 2.66 1st, 0.50 6th, O/D
MN6
Merchandised Transmission, Manual 6-Speed Provisions
MX0
Merchandised Transmission, Automatic O/D Provisions
M12
Transmission, Manual 6-Speed, 85mm, 2.97 1st, 0.57 6th, O/D
M30
Transmission, Automatic 4-Speed, 4L60-E, Electronic
NA3
Emission System, Japan
NC1
Emission System, California LEV
NF7
Emission System, Federal, NLEV
NK4
Steering Wheel, Sport Leather
NM2
Emission System, Export, Leaded Fuel
NP7
Steering Column, EEC Approved
NT3
Emission System EEC 00
N37
Steering Column, Tilt, Telescoping
N73
Wheel, Custom Sport Magnesium
QE1
Wheel, 17.0 x 9.5" Front and 18.0 x 10.5" Rear, Aluminum, Styled
QF5
Wheel, 17.0 x 8.5" Front and 18.0 x 9.5" Rear, Aluminum, Polished
QG1
Wheel, 17.0 x 8.5" Front and 18.0 x 9.5" Rear, Aluminum, Painted
RPA
Rear Parking Assist
T82
Headlamp Control, Automatic On-Off
T84
Headlamps, RH Rule of Road, E Mark
T85
Headlamps, LH Rule of Road, E Mark
T89
Lamps, Tail & Stop, Export
T90
Lamps, Signaling & Marker, Front, Export
T93
Lamps, Tail & Stop, Special
T96
Lamps, Fog
UD4
Alarm, Vehicle Speed, 120 km/h
UK1
Radio Frequencies, Japanese
UL0
Radio, AM/FM Stereo, Seek/Scan, Auto Reverse Music Search Cassette, Auto Tone, Clock, Electronically Tuned Receiver (ETR)
UL2
Radio Frequencies, European
UN0
Radio, AM/FM Stereo, Seek/Scan, Compact Disc, Auto Tone, Clock, Electronically Tuned Receiver (ETR)
UV6
Display, Head Up
UV7
Antenna, Windshield, Rear Window, Radio
UZ6
Speaker System 6, Quad Front Door Mounted, Dual Quarter Mounted
U1S
Player, Multiple Compact Disc
U19
Instrument Cluster, Speedometer, Metric Canadian, Export
U52
Instrument Cluster, Electronic
U73
Antenna, Fixed, Radio
U75
Antenna, Power, Radio
VD1
Provision Options, Europe
VE1
Provision Options, Japan
VG1
Protector Under hood Compound, Corrosion Preventive, Water Based, Clear
VG9
Protector, Wax, Exterior Body
VH5
Plate, Vehicle Identification
VL4
License Plate Mounting Package, Front, EEC
V41
Kit Accessory
V49
License Plate Frame
V73
Vehicle Statement, US/Canada
V76
Tow Hooks
V78
Vehicle Statement Delete
V87
Vehicle Statement, Gulf States Organization
XFW
Tire, Front, P265/40R17-91Y, BW R/PE ST TL HW4
XGG
Tire, Front, P245/45R17-89Y, BW TL SBR HW4, EMT
XMC
Tire, Front, P245/45R17-89Y, BW R/PE ST TL HW4
YFU
Tire, Rear, P295/35R18-91Y, BW R/PE ST TL HW4
YGH
Tire, Rear, P275/40R18-94Y, BW TL HW4 SBR, EMT
YME
Tire, Rear, P275/40R18-94Y, BW TL HW4 SBR
Z49
Modifications, Canadian, Mandatory Base Equipment
Z5X
Mirror Provisions, Arabic Language
Z51
Performance Package, Handling


In addition, this file contains some additional codes, some of which are simply for management purposes:

 

So here are the codes I have no clue about
BGR
FE9
IL3
SLM
VM3

 

BGR = Bowling Green Assembly Plant. The following codes are from 1993 so I'm not sure if they are valid for your year but seeing what they are I have no reason to doubt some of them still applied: FE9 Federal emissions certification. IL3 Interior trim design L3. SLM ?? . VM3 Information consumer label, bumper impact standards

 

SLM Stock Order Processing Code(replaced 1AY, circa 2001

It's in the document I attached to my previous post.

 

BGR - Bowling Green Plant Processing

FE9 - Certification, Federal Emission

IL3 - Trim, Interior Design (L3) (Base w/AQ9)

SLM - Stock Order Processing Code (replaced 1AY, circa 2001)

VM3 - Label Information, consumer contains BPR IMP Standard

 

Thank you.

 

My car's RPO sticker also has the GU2 but also has MX0 RPO.
After checking it out on the highway it comes out to 3.15:1.
Strange.

 

Thanks

 

If the intent of your post was to ascertain having Z51 or not I wouldn't worry about it. WAY TOO MANY C5 owners seem to really think this is something special to have. It was special in 1997. In 2018 it's not. Nowadays either most C5s equipped with Z51 are rolling around on worn Z51 suspension components or there is so much available, that is in most cases cheaper to obtain that Z51 specific items, that outperforms the C5's Z51 package.

The only people Z51 will be important to will be whomever is shopping C5s in 2040. I lose no sleep knowing my car didn't come with Z51.

 

My intent was to find out what spring rate was installed on the car from factory. With this information I can make changes as I see fit for the purpose of my car. The z51 spring rate will fit well and not sacrifice street driving. I will be installing g c6 z51 away bars as they are a little larger than factory c5 specs and even a little larger than c5 z06 set up.

 

I suggest using the Z06 Sway bars and shocks instead of the 'Z51'
They are a direct replacement (no modifications needed) and a better =value (IMNSO)

 

C6 zo6 bars are to stiff of a bar for my car.

 

 

COMPLETELY DISAGREE WITH THIS...Z51 suspension is special. It makes a difference in how well the car handles especially at higher speeds.

 

Didn't the Z51 package include a power steering cooler also.

 

You revived a two year old thread to tell us that? Seriously?