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Click on image for the lowdown. 
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| | | Forums66 Topics128,020 Posts1,055,345 Members48,420 | | 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!
| | THANKS!
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: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | Welcome to the "Bolt". I guess that you don't have the original rear end? The 3/4 T would have come standard with a 4.57 ratio. There are threads about this but basically the 3/4 T automatics with coil springs from 67 to 72 will yield a 4.10 pumpkin which is a direct bolt in for the original setup. You can read more about this on the Jim Carter site.
Good luck with your truck. We all really like photos around here! | | |
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