I have a shorty apex and my track is rubbing the top of my shock eyelet in the rear suspension. I tried using a bearing with a longer bolt through the eyelet to push the track up just a fraction so it would not hit the top of the shock. the problem is that the metal heads of my studs were banging against the bearings and smashed the bearings to poop. they dont stand up to the metal to metal banging. i know Ulmer has something similar...has anyone used it and does it hold up to a season of abuse. i beleive Rocker Dan a a fix, using a pipe, but i was looking for the easy rolling restiance of a wheel... does anyone have a cure or an idea?