I'm not sure if they are rebuildable, I think I'm just gonna volunteer as the test bunny for the forum. They're supposed to have shorter rods to accomodate lowering, etc. I have read alot about spax and their long-time rep, etc, and I guess they're really popular with the euro cars. Thats really my basis for giving them a shot...which could turn out to last only 15,000 miles haha