Axle U-Bolt Torque

[motormayhem]

I took my m1009 on a run with the local off road club this weekend and one of the members noticed that my truck was driving a little sideways. After a quick inspection I discovered that the bonehead who owned my truck before me installed one of the lift blocks upside down so the rear axle is about 1/2" forward on one side. My plan is to remove the u-bolts that hold the axle on the springs, flip the block, check to make sure it is now aligned and reinstall the u-bolts. What torque should I tighten the bolts to. I was planning on using an impact wrench but I am not sure how tight I should make them.

Thanks,
Miles

 

[bsalbrig]

I think I remember it being 180ftlbs

 

[JohnFire]

sounds right. it is listed in the axle replacement section of the TM I think.

 

[motormayhem]

Well I looked in the tm's and here is what I found

Tighten any loose “U“ bolt nuts to 40 Ib.-ft. (54 N•m) in an “X” pattern;
tighten again in same pattern to 150 Ib.-ft. (203 NŽm) for front springs and to
145 Ib.-ft. (197 N•m) for rear springs. Tighten front spring forward mounting
bolts to 90 Ib.-ft. (122 N•m) and rearward mounting bolts to 50 Ib.-ft.
(68 N•m). Tighten all rear spring mounting bolts to 110 Ib.-ft. (149 N•m).
Notify your supervisor if any components are damaged.

Are these numbers the same for the longer u-bolts required for a 4" lift?