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Click on image for the lowdown. 
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| | | Forums66 Topics128,037 Posts1,055,466 Members48,424 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Jul 2017 Posts: 45 'Bolter | | 'Bolter Joined: Jul 2017 Posts: 45 | Thanks guys. For those years there was a 55P and a 55T R&P sets. They were 8.2 and 9.375 respectively. The P is evidently passenger car and T is for trucks. Some info said the P was for posi but that's evidently not so.
Armed with that info I have searched the internet for a 9.375 55t ring and pinion set and haven't found anything yet. Anybody know of something available. Randys Worldwide said gears are backordered and won't be in until after January 2022.
TIA Jim
Jim
1955 Chevy series 2 6 cylinder, 3 on the tree Short bed, step side
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