lsc91

Can anyone please tell me what the correct rear pinion angle should be before I lift my jeep. Right now I have two inch blocks and I'm putting a bastard pack in. thank you for your time

OverlandZJ

There is no single answer to your question.

Check out the tech section here..

http://www.4xshaft.com/index.html

winston427

And for love of all that is Jeep, get rid of those stupid lift blocks. They are fine for a street driven vehicle but will be the death of your driveline offroad. They will severely increase the axle wrap and put the driveshaft and u-joints in a bind and result in failure. To better understand it think of it this way. When you have a bolt that is stuck and a standard ratchet just can't get the job done you can use a piece of pipe on the handle to increase the force applied. Lift blocks use that same principle and create more axle wrap that will also cause premature sagging of the leaf springs.

lsc91

Thats why I doing the lift I'm tired of the blocks but thats what I had at first to fit the 31's. I'm just trying to get the pinion angle somewhat close so that I don't "EDIT by MOD" anything up while driving it,wheather it be on the road or through the trails

winston427

How much lift are you going for with the bastard pack? Every Jeep has it's own little quirks when they are lifted. Some will develop driveline vibes at only 3 inches while others may run smooth at 6 inches of lift.