I've also been having a problem keeping the collar tight on the torque tube. It stays tight for 50 miles or so. Then I start to feel a vibration. So I check the slip collar and the retaining ring has loosened way up. Wondering if this is an indication of the okie bushing going bad or having excessive wear? So i took two hose clamps and strategically oriented them and ran a piece of safety wire around them to try and stop the collar from backing off. Will let you know if it works.
Jeff 1964 Chevrolet K10 Fleetside "A Kid's First Truck" Follow in the DITY 1951 Chevrolet 3100 Follow his build in the Project Journals 1969 Chevrolet Camaro Convertible | 2020 Chevrolet Silverado | 3500 Duramax | 2021 GMC Sierra Denali USAF Veteran 1983-1987 | PSP retired 1990- 2012