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Old 09-10-2022, 06:39 AM   #9
special-K
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Join Date: Nov 2004
Location: Mt Airy, MD
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Re: 1967 GMC RPO Codes

Quote:
Originally Posted by mcca5773 View Post
A friend of mine has a clone from the same plant. I'm trying to recreate the RPO codes as they should have been. Some changes in verbiage from the build sheet to the SPID. I've got all of the 3 digit codes, but I'm trying to complete to 5 digits. Also found a 1967 GMC Suburban that the RPO to 7 digits. The areas that are highlighted are missing information or haven't been confirmed from a SPID.
That first SPID has got to be the most descriptive I've seen. Even the TH400 is specified. The five digit codes is a thing I'm not familiar with. I don't know if, but would assume, they are standardized. Always the same two additional digits. That "Show Us Your SPID" thread offered by Dagnabbit should help you
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