I'm working on the Youkon 5.29 install for the front of my 4Runner. I am having trouble getting the neccessary carrier bearing pre-load. I have installed new bearings and even ordered an assortment of shims, but, even with the thickest shims I have (.126" and .122"), the carrier drops in by hand. Being a Zuk diff disciple, I aim for significant bearing pre-load and am nowhere close. I don't have any other shims laying around to add. There doesn't appear to be any excessive wear on the housing or carrier and the bearings are new. Any suggestions on my best course of action?