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Mod | | | Forums66 Topics128,151 Posts1,057,004 Members48,460 | | 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!
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| | | | Joined: Feb 2011 Posts: 23 New Guy | | New Guy Joined: Feb 2011 Posts: 23 | hi guys
sorry if this is the wrong place to ask but i didn't know where ells to post
ive swapped out my original diff for a 37 sedan diff as its top leaf mounted and will allow me to lower the truck.
but i am now having a issue finding u bolts as the ones that were on the original diff were square end but the sedan requires round ended u bolts.
so my question is what is the standard length of the u bolts in a 37-38 Chevy 1ton ive measured up how long they need to be and have some out at approximately 8" (i would be more specific but i have issues with imperial measurements) due to the 14 leafs stacked on each other.
any help would be appreciated as i think the last owner might have jammed more leafs in screwing original measurements for me
thank you
jeff
| | | | | Joined: Feb 2011 Posts: 583 'Bolter | | 'Bolter Joined: Feb 2011 Posts: 583 | Do you have a spring/axle repair shop in your area? Take your measurements that the ubolts need to be and they can make you up a set. A lot easier than trying to find a vintage set. Had some made for my 39 Truck and they were quite reasonable. Rick G.
1939 Chevrolet Stake Truck
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