Found a build sheet, need some help.
Thread Starter
Junior Member
Joined: Sep 2007
Posts: 17
Likes: 0
From: AA County, MD
Car: 1990 Firebird Formula
Engine: 305 TBI
Transmission: 700R4
Found a build sheet, need some help.
Hey everybody, I found this build sheet in my passenger side seat. I know what two of these codes mean, the N65 is the spare tire and the AR9 is the bucket seats. Can you guys shed some light on the rest of this?
Supreme Member
Joined: Jul 2006
Posts: 1,672
Likes: 4
From: Killam, AB
Car: 1989 IrocZ Convertible
Engine: 305 TPI
Transmission: T5 - 5 Speed Standard
Axle/Gears: 3.08
Re: Found a build sheet, need some help.
Great find, although technically it's not the build sheet.
See . . . https://www.thirdgen.org/forums/hist...light=assembly
They look like this . . .

But we'd be happy to help you decode it. Hang on for more replys.
See . . . https://www.thirdgen.org/forums/hist...light=assembly
They look like this . . .

But we'd be happy to help you decode it. Hang on for more replys.
Supreme Member

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
Re: Found a build sheet, need some help.
Lots of info. these are the codes that are found on the parts specifically so the assembly line knows what to put in your car.
For example, in the lower right is the rear suspension. NNL - is the code for the springs. In the middle is XH which is the code for the steering box. And so on.
If you search up some of the codes you will find references. The XH steering box is the fast ration 16" tire version.
I have listings of all the GM springs, so I know for certainly about the NNL. I suspect there are other listings for the other codes.
I have some info specific from the Player's race series, but not complete listings.
Mark.
For example, in the lower right is the rear suspension. NNL - is the code for the springs. In the middle is XH which is the code for the steering box. And so on.
If you search up some of the codes you will find references. The XH steering box is the fast ration 16" tire version.
I have listings of all the GM springs, so I know for certainly about the NNL. I suspect there are other listings for the other codes.
I have some info specific from the Player's race series, but not complete listings.
Mark.
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