Cool that's where I plan on starting. Once the shaft is replaced I'm going to take all the wheels into a shop and have them rebalanced, see if they got bent or anything. Head up to Chet's Wheel Alignment to see if the impact knocked the alignment out of whack (would an alignment shop be able to tell if any of the frame or control arms were damaged or bent by doing an alignment?) Is there any way to test the rear diff for internal damage? I figure once the new shaft is on if it still has power issues it might be the differential. Anything else I'm missing?