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Wheel offset

Looking for a replacement wheel for my 77 GMC Sierra 25. Looking to put on a set of factory wheels from 2003 Chevy HD. 8x6.5", Offset - 28mm, Hub Bore - 116.7mm. Will these fit without issue? Not sure about offset. Thank you.
- Mattrob
- Thread
- Jul 1, 2022
- Replies: 4
- Forum: Tech Discussion
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Which Tranny do I have

New owner of 77’ GMC Sierra 25. Which transmission do I have in it. Label in glovebox does not say 400 or 350 but Turbo Hydramatic 1M40.
- Mattrob
- Thread
- Feb 26, 2022
- Replies: 14
- Forum: Automatic Transmission
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1ZY4 need paint color 77’ GMC 25

Trying to get correct exterior colors for my 77 GMC 25. Looks to be a burgundy ish color. Also want to source a dash pad which looks red although I doubt it is actually “red”. See Attached pics and thanks in advance.
- Mattrob
- Thread
- Feb 26, 2022
- Replies: 1
- Forum: Paint and Body
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1st time owner 77 GMC 25 and wanted to find out what colors exterior colors I have as well as the exact color of dash pad. Will post pics.
- Mattrob
- Thread
- Feb 26, 2022
- Replies: 12
- Forum: Introduction