1974 blue door jamb vin data decal
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1974 Blue Door Jamb VIN Data Decal
Hi,
I’m trying to get a VIN door jam decal reproduced for a 1974 Corvette. I believe the GVWR line listing the weight numbers changed depending on the vehicle options. The car has very limited options and was not even delivered with a radio from the factory.
Engine - L48
Transmission - Turbo 400
Only Options:
Air Conditioning
Power Steering
Power Brakes
Is there anyway to calculate what GM would have used with only those three options and an L48 and Automatic Transmission for the weight numbers on this line?
I’m trying to get a VIN door jam decal reproduced for a 1974 Corvette. I believe the GVWR line listing the weight numbers changed depending on the vehicle options. The car has very limited options and was not even delivered with a radio from the factory.
Engine - L48
Transmission - Turbo 400
Only Options:
Air Conditioning
Power Steering
Power Brakes
Is there anyway to calculate what GM would have used with only those three options and an L48 and Automatic Transmission for the weight numbers on this line?
Last edited by LS7Vette; May 11, 2026 at 06:48 PM.
Melting Slicks
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From: Minnesota
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Thanks for your help with this.
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Does anyone know if the build date had a 0 in front of 3 for March in 1974? I’ve seen some typed out as 3/74, others 03/74, as well as 3-74, and 03-74. I can’t tell if some are just reproductions and done wrong, or if they used different variations based on months or years of production. Does anyone have an original on their car or a picture of an original from 1974 to see how it was done then?
Team Owner
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From: Westminster Maryland
Hello LS7V,
Forum Member Tooch1 is quite familiar with 73-74 cars.
You might want to contact him regarding your questions about the Blue Certification Decal.
Regards.....
Forum Member Tooch1 is quite familiar with 73-74 cars.
You might want to contact him regarding your questions about the Blue Certification Decal.
Regards.....
Last edited by Alan 71; May 13, 2026 at 07:57 AM.
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St. Jude Donor '08-'09-'10-'11-'12
...pic of the actual door sticker off of my '74 Corvette coupe, L-48, automatic, power steering, power brakes but NO A/C. Built 9/73, #01950 out of 37,502 Corvettes built in 1974.
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Thread Starter
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Paul
thanks for posting the pictures. I’m curious to know what options your car has. I can’t help but notice if you take the weight of the vehicle and add the options listed in that Corvette specifications booklet on the GM Heritage website, it doesn’t come close to the weights of any of the decals from L-48 optioned cars. They’re all a few hundred pounds off. This is the same case if you went with the weights on a 1973 Corvette. I wonder what else GM was adding to the weight. Either way, I’m going to do like most people and add the weight up from that book and use that for my decal.
Thanks again,
Ray
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St. Jude Donor '08-'09-'10-'11-'12
Paul
thanks for posting the pictures. I’m curious to know what options your car has. I can’t help but notice if you take the weight of the vehicle and add the options listed in that Corvette specifications booklet on the GM Heritage website, it doesn’t come close to the weights of any of the decals from L-48 optioned cars. They’re all a few hundred pounds off. This is the same case if you went with the weights on a 1973 Corvette. I wonder what else GM was adding to the weight. Either way, I’m going to do like most people and add the weight up from that book and use that for my decal.
Thanks again,
Ray
thanks for posting the pictures. I’m curious to know what options your car has. I can’t help but notice if you take the weight of the vehicle and add the options listed in that Corvette specifications booklet on the GM Heritage website, it doesn’t come close to the weights of any of the decals from L-48 optioned cars. They’re all a few hundred pounds off. This is the same case if you went with the weights on a 1973 Corvette. I wonder what else GM was adding to the weight. Either way, I’m going to do like most people and add the weight up from that book and use that for my decal.
Thanks again,
Ray
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Ray, my '74 was only a 6 option car from the factory. It has power steering, power brakes, white stripe tires(when new), HD battery(again, when new), AM-FM radio, deluxe leather interior. I've also wondered how they did the weights on say, an L-48 automatic vs L-48 4spd car? Or say L-82 with A/C vs one without? My car also is a manual window, no A/C car, so I wonder how that figures in?
Your car is very similar to this one. A 74 that’s Corvette Orange with a medium saddle interior. The only options it has is:
A/C
Power Brakes
Power Steering
Turbo 400 Automatic
the car has no other options (No Radio, Standard Interior, no tilt column, crank windows, and no other options at all). I found what GM used to some extent to calculate the weights as seen below. Also, what radio does yours have: AM/FM, or AM/FM Stereo.
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St. Jude Donor '08-'09-'10-'11-'12
.....that's a cool sheet showing weights!!! 200lbs more for a 454!!! Also 14lbs MORE for an L-82? For the valve covers & possible smog pump & plumbing extra weight?
...my car has the U69 AM-FM radio, NOT stereo. Also, manual windows & no tilt/tele column.
...the Turbo 400 is 54lbs MORE I guess than a aluminum 4spd with L-48 or L-82, but only 45 MORE pounds with a 454??? Wonder why the difference there?
...my car has the U69 AM-FM radio, NOT stereo. Also, manual windows & no tilt/tele column.
...the Turbo 400 is 54lbs MORE I guess than a aluminum 4spd with L-48 or L-82, but only 45 MORE pounds with a 454??? Wonder why the difference there?