TRICKLIDZ

A shim can be made smaller by up to 3 thousands of an inch by carefully sanding.

I take one thou off by sanding on a piece of tempered glass with 400 grit paper and WD40.

Followed with 600 grit.

More can be taken off by starting with 220 grit paper followed with the 400 then 600.

Make sure the shim is held flat and rotate it on the paper occasionally.

BE CAREFUL. THE SHIMS CAN GET VERY HOT WHILE SANDING.

Finish each sanding session with a good cleaning with brake cleaner and compressed air.

This also helps cool the shim before rechecking it.