Reading thie codes on this paper
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Joined: Dec 2005
Posts: 1,244
Likes: 1
From: Texas City, Texas Area
Car: 89 RS, 92 Z28
Engine: 305 TBI, 350 TPI
Transmission: 700R4 Both Cars
Axle/Gears: 3.23 Posi.. 4 wheel disc both cars
Reading thie codes on this paper
Can someone tell me where I might decode this paper that was under the drivers seat in my car...Thank You.....
Last edited by Gallileo60; Oct 2, 2006 at 08:05 PM.
Thread Starter
Supreme Member
Joined: Dec 2005
Posts: 1,244
Likes: 1
From: Texas City, Texas Area
Car: 89 RS, 92 Z28
Engine: 305 TBI, 350 TPI
Transmission: 700R4 Both Cars
Axle/Gears: 3.23 Posi.. 4 wheel disc both cars
Hey guys, I would like to bump this back up, and hope I can get a reply...I would really like to decode this thing, or at least find out where I can decode it..I have the GM RPO book, but it is no help...I also have the TGO decoder on my computer...If anyone can help me, I would be most thankful.....TOM
Thread Starter
Supreme Member
Joined: Dec 2005
Posts: 1,244
Likes: 1
From: Texas City, Texas Area
Car: 89 RS, 92 Z28
Engine: 305 TBI, 350 TPI
Transmission: 700R4 Both Cars
Axle/Gears: 3.23 Posi.. 4 wheel disc both cars
Well, I just do care, it also has spring info, and sway bar stuff......I know it seems trivial to some folks, but i just want to know...Thanks for your reply tho...Tom
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Joined: Dec 2005
Posts: 1,739
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From: Beaufort South Carolina
Car: 1983 Camaro Z/28
Engine: LU5 305 CFI
Transmission: 700R4
Axle/Gears: J65/G80/G92-3.23
It would be interesting if someone has a source to decode everything for you.I know the AR9 is reclining front seats.But the rest I have no idea except,like you stated,it's codes for spring rate,brake type,stabilizer bar,wheel and tires-including spare.And then the plant code L = Van Nuys.The delivery location maybe the original ordering dealer.Just a guess.Hopefully someone can decode or give direction to where the info is.
Midwest Muscle has a post showing a similar build sheet from his '89 TTA.
Midwest Muscle has a post showing a similar build sheet from his '89 TTA.
Thread Starter
Supreme Member
Joined: Dec 2005
Posts: 1,244
Likes: 1
From: Texas City, Texas Area
Car: 89 RS, 92 Z28
Engine: 305 TBI, 350 TPI
Transmission: 700R4 Both Cars
Axle/Gears: 3.23 Posi.. 4 wheel disc both cars
Hey Midwest where di you find yours????? there seems to be alot of different info on this paper...And Coolram, Thanks.....
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Thread Starter
Supreme Member
Joined: Dec 2005
Posts: 1,244
Likes: 1
From: Texas City, Texas Area
Car: 89 RS, 92 Z28
Engine: 305 TBI, 350 TPI
Transmission: 700R4 Both Cars
Axle/Gears: 3.23 Posi.. 4 wheel disc both cars
WOW, now thats a weird place to put it...My old 84 was under the back seat, the 89 I have now had 2 one under each front seat....
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Joined: Jul 1999
Posts: 1,466
Likes: 71
From: Alberta, Canada
Car: 1989 Camaro-1LE
Engine: TPI(s)
Transmission: 5 speed (MM5, MK6)
Axle/Gears: 3.45, 3.73
This isn't too hard to decode ... although you will need to know some of the codes that came on the parts.
- 1FP87 is the model of the car
- "JL" is the steering box code (do a search)
- "NUY" is the spring code
Here is a page from a GM book for springs. You will see the code "NUY" and the front spring code "XU" (which is the last two letters).

I know which codes came on the Player's Race cars, but not all the general production ones. Interesting ... on the player's cars, this sheet has either "RACE" or "CANADIAN PLAYERS CAR" on the lower right. A cool find. Plus it confirms what options you had to have in order to be legal to race.
For a non-race car, this sheet is interesting as it lists which springs your car came with, shocks, etc. If you did want to match up the parts "exactly", this is key info. Although I think GM only sells one or two springs now, the larger list is discontinued.
Mark.
Mark.
- 1FP87 is the model of the car
- "JL" is the steering box code (do a search)
- "NUY" is the spring code
Here is a page from a GM book for springs. You will see the code "NUY" and the front spring code "XU" (which is the last two letters).

I know which codes came on the Player's Race cars, but not all the general production ones. Interesting ... on the player's cars, this sheet has either "RACE" or "CANADIAN PLAYERS CAR" on the lower right. A cool find. Plus it confirms what options you had to have in order to be legal to race.
For a non-race car, this sheet is interesting as it lists which springs your car came with, shocks, etc. If you did want to match up the parts "exactly", this is key info. Although I think GM only sells one or two springs now, the larger list is discontinued.
Mark.
Mark.
Last edited by Mark_ZZ3; Dec 17, 2006 at 10:54 AM.
Thread Starter
Supreme Member
Joined: Dec 2005
Posts: 1,244
Likes: 1
From: Texas City, Texas Area
Car: 89 RS, 92 Z28
Engine: 305 TBI, 350 TPI
Transmission: 700R4 Both Cars
Axle/Gears: 3.23 Posi.. 4 wheel disc both cars
MarkZZ3, Thanks alot....Where did ya get the page you posted......Really appriciate the info....Tom
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Joined: Jul 1999
Posts: 1,466
Likes: 71
From: Alberta, Canada
Car: 1989 Camaro-1LE
Engine: TPI(s)
Transmission: 5 speed (MM5, MK6)
Axle/Gears: 3.45, 3.73
It is a copy of a page I got as part of my racing info. Basically, GM Techs gave this to the Racers so they could fine tune their suspension. They needed to meet a minimum ride height and of course, they ensured they were exact at that.
There must be a master GM parts book out there that lists ALL of that. Someone one board may have access to it.
I think I have a 3 years of spring codes. Take a look at the bottom of the page and drop by your local GM dealer and see if they know what book it came from.
Mark.
There must be a master GM parts book out there that lists ALL of that. Someone one board may have access to it.
I think I have a 3 years of spring codes. Take a look at the bottom of the page and drop by your local GM dealer and see if they know what book it came from.
Mark.
Thread Starter
Supreme Member
Joined: Dec 2005
Posts: 1,244
Likes: 1
From: Texas City, Texas Area
Car: 89 RS, 92 Z28
Engine: 305 TBI, 350 TPI
Transmission: 700R4 Both Cars
Axle/Gears: 3.23 Posi.. 4 wheel disc both cars
Yes, I was hoping that someone would have the book, or acsess to it...BTW, what is a players choice car??? Never heard of that before, and thanks again for the info...Tom
What you have there is what most people consider to be a 'build sheet'. Really, all it was for was to help the folks assembling your car on the assembly line to put the right parts into the car. Specifically this one was for the interior, more specifically the seats. They're usually stuffed between the seat foam and the springs on the bottom of the front seats. When the seats were assembled the worker could either shove them in the seat or toss em in a garbage can, or scribble a grocery list on the back and shove it in his/her pocket.
Theoretically there were several such sheets used by the workers at various stages along the line, and some find their way into the cars. Some are more usefull then others. The ones under the seats are usually still there, but they aren't worth digging for. The SPID is still the only list worth searching for since most of the others aren't going to be complete and aren't going to contain usefull codes.
Theoretically there were several such sheets used by the workers at various stages along the line, and some find their way into the cars. Some are more usefull then others. The ones under the seats are usually still there, but they aren't worth digging for. The SPID is still the only list worth searching for since most of the others aren't going to be complete and aren't going to contain usefull codes.
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