8&3/4 489 Cone Style Mod

RustyRatRod said
It depends. Sometimes the cones are badly grounded to the case. I've taken off about .070" on one I did a while back. I get the shims from Summit.

Thanks everyone this is very helpful. I have tried to find them on Summit. I think I am putting in the wrong keywords. Does anyone happen to have a link or know what it would be called on there?