[lincpimp]

Yeah, the cross pin holds the diff output in place. I an suprised that you are having problems, my hb diffs went in perfectly, but I did have to shim the pinion as it was not deep enough into the case and was not meshing completely with the ring gear. Are your diffs new or used, and are they the truggy or buggy diffs? I have buggy diffs in mine. The only difference is the ring gear, the cups, internals, etc. are the same. The only reason I ask is there must be something behind that bearing, or maybe the diff case is not machined correctly. Have you had a good look at the case where the bearing sits?