Going thru my stash of truck parts, I found this bracket I made some time ago to help support the gearbox while it is being given some needed attention up on the bench. The rear drain plug support probably isn't needed but it does help make the gearbox more level, front to rear.
Food for thought.
Craig's '50 Chevy 3100 5 window My truck If I'm not working on my truck or VW camper, I'm fishing with the wife or smoking Salmon.