contact pattern

Sometimes on the pinion bearing spacer shim stack you have to play with the #'s. In other words if you need .032 and the thickest one you got is a .031 but you have a .020 and a .012 add them together. So you didn't trust me on the high amount of pinion nut torque huh, LOL..
It was`nt a matter of trust, it was internet jabber albiet ford. I guess I was tring to avoid 250 ft-lb cause it takes my whole body weight to get 150 ft-lbs LOL
contrary to your pinion preload statement pinion shim change does change preload.
As far as shim stack, I understand all that, My kit came with 30s20s10s and 8s. .023 was needed, ol Doc had a 23 but the id was smaller and od was bigger. I had to modify, took an hour+ to do that.
Now how to figure axle length on narrowed housing? New thread, new drama lol:cheers: