Originally posted by Bubblestc3
I have been running a shim in each diff case(front, and rear), mostly for crash protection at SoCal(yes, even in Sportsman Stock there is some crashing). It has not seemed to make my drivetrain bind at all...
It is my understanding that the longer shaft just seats into the pinion gear a little bit better. It is not pushing the pinion into the case any harder, it just has more of a surface contact with the pinion. Thus, it should not cause any binding, and the inside of the pinion will/should not strip out.
I think I am learning the EVOIII REAL well now! 
*claps**pats on own back* hahahaha 
Hey Bubbles, who are you teaming up with for the enduro? Will you be going to Tamiya and SoCal this Saturday?