So e30, you had an aftermarket hitch on yours, and are replacing it with OEM? I didn't note that from your previous posts. The info in this thread on the plastic connectors, wrong head size on the 16/17mm bolts, and alignment are certainly helpful. Won't get to mine [sitting in the garage] until we get a warm weekend day .... Junky, my offer to sell you old crossmember when I do the install still stands ...

__________________
2006 X5 3.0 6-spd w/Evo UUC ssk
sport/premium pkgs
born Valentine's Day, 2006.