whining rear

From the little bit I think i understand.

If it's a used third member, meaning it just came out of a car before you got it, the torque reading should be 0-1 inch lb..
If you messed with it and it's more, Your bearings may be fried if you used it much


By using a inch lb. bar torque wrench, ( not a clicker ) on the pinion nut, when it's turned and in a vise,
you take this reading.

It's hard to explain, because you're dealing with two torque figures.


With a crush sleeve, final torque seems to be 250 ft. lbs. and higher, depending on who's doing it.


This procedure is without a crush sleeve, using a solid spacer on a 489. Specified torque is 125 foot lbs.

You tighten the nut, you take a reading, over and over till you get to the specified torque without going over your preload.

If the torque isn't reached or is too much, you remove or add shims. And start over.

I don't know what specified torque you can get away with.

Use a chevy nut, it won't back off.