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Jul 21st, 2025 | | | | Joined: Mar 2008 Posts: 374 'Bolter | | 'Bolter Joined: Mar 2008 Posts: 374 | For removal of the u joint in the torque tube on a 46 1/2 ton, do I support the rear end with jack stands, or do I support the rear frame with jack stands and let the rear dangle unsprung. I know you are supposed to place a jack stand under the center of the torque tube as it will have downward force once the u joint is removed. Looking to install an okie bushing asap. Thanks!
Last edited by Gdads51; 11/15/2024 9:08 PM. Reason: add detail to title
| | | | | Joined: Sep 2009 Posts: 4,392 Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT | | Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT Joined: Sep 2009 Posts: 4,392 | Big Tee, Your question is a good one, but will get the best answers to the topic in our Driveline forum, so it's been moved there for further conversation and help. Others will be chiming in soon! 
~ Dan 1951 Chevy 3 window 3100Follow this story in the DITY Gallery"My Grandpa Carl's Truck and How it Became Mine"1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
| | | | | Joined: Jan 2002 Posts: 2,696 'Bolter | | 'Bolter Joined: Jan 2002 Posts: 2,696 | I support the rear frame on both sides. I also support the TT up near the Ujoint to prevent the slap down when you disconnect the ujoint.
Craig My '50 Chevy 3100 5 window, '62-235cu, 3:55 rear My truck ....... Respect The Rust If I'm not working on my truck, '65 m00stang or VW camper, I'm fishing with the wife or smoking Salmon.
| | | | | Joined: Feb 2004 Posts: 28,674 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 28,674 | If you put jack stands under the axle tubes, the TT will slam down violently from the weight of the truck as the U joint is unbolted. Support the frame on jack stands, and use a small floor jack to lower the torque tube after you unbolt the universal joint.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Mar 2008 Posts: 374 'Bolter | | 'Bolter Joined: Mar 2008 Posts: 374 | Thank you all. The okie bushing install was a success! | | | | | Joined: May 2023 Posts: 442 'Bolter | | 'Bolter Joined: May 2023 Posts: 442 | Do you have a 3 or 4 speed transmission.. On my 54 3100 I had a 4 speed and it didn't have clearance to drop down. I had to raise it and remove the rear yoke. It hadn't been off in 70 years and was a tough one.. had to use a chain and pully to get it out.. I then had room to lower it and get the rest of the stuff off the shaft. Then thanks to input on here I raised the torque tube up and ran a 2/4 across the frame to support it up and out of the way and safe from coming down..
If you have a 3 speed you should be fine as for as clearance goes and can lower it down and remove everything.
Doug
1954 Chevy 3100One problem solved doesn’t seem to shorten the list Montgomery, ALIn Project Journals | | | | | Joined: Sep 2010 Posts: 1,955 'Bolter | | 'Bolter Joined: Sep 2010 Posts: 1,955 | On my 54 I took off the 4 u bolts popped it off the springs and slid it back a inch ,did not have to touch the brakes there was enough slack to let it back just enough. | | | | | Joined: Mar 2008 Posts: 374 'Bolter | | 'Bolter Joined: Mar 2008 Posts: 374 | On mine, I was able to remove the cross member right behind the transmission and drop the torque tube with no issues. | | |
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