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- - Build Sheet Codes (https://chevroletforum.com/forum/silverado-sierra-fullsize-pick-ups-21/build-sheet-codes-21660/)

71inliner

Apr 2, 2009 1:39 PM

Build Sheet Codes

Looking to interpert the codes on my 1971 chev 1/2 ton build sheet. Does anyone know of a link for these codes?

71inliner

EvansBlue

Apr 2, 2009 11:48 PM

are they 3-digit RPO codes?

71inliner

Apr 3, 2009 10:38 AM

71inliner

My 71 build sheet has up to 5 digit or numbers in the main "numbered grid of 110 boxes". Below that are the 3 digit RPO codes. I would like to interpert all.

I have seen elsewhere on this forum a "this is a saver - GM build codes" but it doesn't have all the RPO codes I'm looking for - particularly the rear gear ratio, as well as how to read these grid boxes.

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