What is the torque spec for rear axle nuts on Peterbilt 379?

It depends. Does it have a spacer/sleeve between the bearings? I assume not if it has two nuts

It's best for someone that hasn't done it before to follow manufacturer specs. Stemco and Webb have some guidelines out there.

 

Tight as you can get it with a pipe on your 3/4 drive rachet?

 

Edit: just noticed it's an old post. Still, If no spacer, .001-.005 end play. Search RP 618A

 

Been there done that.

 

I must have read his post too quickly. I thought he was talking about bolting the big 2-1/2 inch nut and yoke back on after changing the mid shaft bearing.
That might be quite a bit too much torque on that nose cone front differential cover bolts.
It is an older thread also which I didn't realize.