I got mine for $12 off ebay from a dodge dealership that had new take offs from a brand new 2007 3/4 ton diesel truck. All I had to do was drill the shock bushings out one drill size bigger on a drill press (run the bit slow, held the shock by hand, drill halfway thru each side, PERFECT fit on the mounts). Stiff buggers they are, but took care of my porpoising problem.