Hey guys I just did a 3inch rsk on my 95 f250. I basically followed what brad did for the rear and put 5inch tapered ready lift blocks in the rear. Now when I take off I get a driveline shimmy. I have a extended cab longbed so I am assuming I need to shim my carrier bearing to take bring everything back in line. My question is how thick of a shim do I need or is it going to be a trial and error thing trying different thickness shims?