fixing my 8 3/4, advice please

DoctorDiff said

I install crush sleeve eliminators because pinion bearing preload can't increase due to a seal or yoke replacement.

Click to expand...

what is the difference to install a crush sleeve eliminator? Do I need to change anything else? I did not plan to replace anything except for the front pinion bearing, race, seal and crush sleeve. Also is the toque specs the same?