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Labor Day Putting down your wrenches or time for
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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!
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| | | | Joined: Jul 2011 Posts: 74 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2011 Posts: 74 | I have a 1948 chev. 1 ton but i think that the rear end has been changed. My chev manual said that the # stamped on the out side will tell you if 1/2 - 3/4 - 1 ton ect. It said on the right side tells us that it is a 1/2 ton. On top it would be 3/4 and 1 ton. The number is on the right side and the # is 8698535. I think that it would make it a 4:11 and not a 4:57.
What I am trying to do is change the ring and pinion to get my rpms down when going to shows. Jim Carter has one that they say will work for the 4:11 taking it to 3:55. Other then that I would put in a gear vender. Much Much cheaper to do the ring and pinion. Thank you for any input. | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | If you have either the 3/4 or 1 ton axle, the ring and pinion kit will not work, as it is only for 1/2 ton rearends. The number you posted is a casting number, the ID number should be stamped on the top of the carrier at the right side, and should be a 2 letter/3 digit code, example; "XX 123". The only gears available on 3/4 and 1 ton were 4.56 and 5.13, respectively.
Bill Burmeister
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