Originally Posted by monkeyracing

I've been using 2 extra shims per side, with the outer ones glued to the diff case. This transfers the wear to the metal parts, even though there's not much wear. The cool thing about the is you can use the diff case screws to adjust the stiffness. Just make sure they're even, or you'll see weird premature wear. Also, I drilled a tiny hole in the side of my chassis to allow access to the case screws, doe occasional adjustment.

Jim