just got done installing the new bearing carrier. its one of the dual row bearing carriers that they are selling on ebay for 179. my old carrier and spacer was shot and even though we put new bearings in it, it never did spin the way it should. i havent been able to ride it yet, but the axle spins extremely smooth and doesnt stop immediately when you try to spin the wheels by hand. installation when without a hitch. even though this isnt a performance part, i'm hoping that it will free up some lost hp. so far so good and i'm please with it and the quality.