Hi guys. I installed a superlift 4" front 2" rear with blocks and now when I take off I get a shudder. It only happens on a medium to hard take off. Im thinking because I used the blocks that the rear end is trying to break free but the rear end lifts and hits the helper thats attached to the frame and forced back down??. Before you say take that off, I need it as I tow a Fiver. Is there any other way to fix it aside from doing an add a leaf? Has anyone else had this happen? Thanks in advance,

Todd

 

It will happen when you combine alot of torque, larger tires, and a larger block above the axle. You can add traction bars, or have new leafs made for the 2 inches of lift.

 

Thanks Hen. Thats is what I figured. I should have just ordered the leaf springs in lue of the blocks but I was told that the blocks are better if I tow a camper... Thanks again

 

If you have a cc or sc you may need to shim down your carrier bearing to align your driveshaft. I had to do this on my 05 and it fixed the problem.