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Click on image for the lowdown. 
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| | | Forums66 Topics128,149 Posts1,056,814 Members48,454 | | 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: Jan 2008 Posts: 4,962 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,962 | 41-56 Chev and 46-55 GMC used that rear end. 6.17 was by far the most popular. Later ones can be made to work by changing side gears. The old ones had 10 splines and the later ones had 27 splines. However the faster gear is harder to find in the newer ones because they engines turned faster and needed the torque. | | |
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