Well I can tell you even with that washer if you end up haveing a Eclip come off of a hinge pin you can basicly end up with the same thing in less than 3 min. Went through 4 diffs before we found it. It go by us because everything would roll freely when it was not in a turn. It ended up that it was a really technical track so it was only binding up when you were in a turn. So every time we were just rolling it nothing was binding up.