Originally Posted by
NitroOB4You
FYI- As mentioned in previous posts, I've had some issues with "Crunch n Munch" diffs. I recently took a gamble on some Kyosho 12x15mm shims, to push the crown away from the pinion inside the diff case. I have not run it yet, but rolling it on the bench, it appears to be much, much better.
http://www.amainhobbies.com/product_...mm-Shim-Set-10
Crunchy Diff Syndrome only last till the end of you first qualifier. After that its like butter. The Motor pinion to the spur ..Well thats a whole other issue.