Good luck getting help from Nissan on anything. I haven't had rear problems yet but I've had two cluthes burn up under normal on-road conditions. One at 13,000 miles and the second at 26,000. Nissan told me that the clutch is a normal wear item in manual transmitions. What!!! I've been driving manual for 15 years and have never burnt a clutch before!!! And that includes ten years of wheeling. Nissan customer service sucks and the Xterra is great for camping, not hard-core wheeling.