AMC 20 pinion seal replacement

Any special precautions to watch out for when replacing this seal. I've replaced them on my D44 so I figured the nut will be a pain in the arzzz.

 

this axle uses a crush sleeve I believe
do you have an inch pound torque wrench ?
the proper way is to measure the torque required to turn the pinion/nut
before disassembly; record that measurement
replace seal and reinstall yoke/nut
tighten nut to torque value previously recorded
then increase by 5 in lbs
you don't want to overtighten the nut, that's the only warning I can see

 

btw
correct pinion preload is supposed to be 17-25 in lbs per the FSM

 

Thanks for the info.

 

What I do is make witness marks on the nut, yoke and pinion shaft and count the number of threads from the end of the shaft to the nut. Remove everything, change the seal and replace everything back in its orginal orientation using the witness marks. I use red loctite on the threads. I've done 4 AMC 20's and a D35 this way and no problems.