So yesterday I took the truck for a ride to pick up my son from baseball practice. It was a total of about 30 miles round trip. The clamps and safety wire were successful in keeping the collar from backing off. So in the future when I remove the rear differential and torque tube for a gear change, I may just weld tabs on the collar and trunion cover that attaches to the back of the transmission. Both will have a 3 /16 drilled in them so a can run a piece of safety wire between them. This would solve the problem and look less intrusive than the hose clamps
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