If you have a front loading 3/4 Ton, 4:57 rearend, the pinion nut has nothing to do with bearing preloads at all. The nut does take a whole lot of torque though and a cotter pin.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!