I am having some major gear problems with my 18mt. It was doing that grinding sound whenever I would accelerate fast or go from reverse to forward a bit fast, so I called AE and they sent me a new gear and more shims for the rear diff. Stock it comes with 2. So far I have added 4 to each diff. so overall there is 6 shims in each diff. Way too many I would expect, I am going to call them tomorrow, but what do you guys think? I don't want to add any more shims because I know 6 is already way too many and my gears would be waaay to tight.

you might find more help at www.one18th.com (http://www.one18th.com)

you need to get the BRP shim kit for the gears. this is a common problem in the 18T and is easily fixed with the shim kit go to www.brpracing.com or check your local hobby shop

those shims are the same as the ones associated sent me though aren't they? I mean what can be different?

those shims are the same as the ones associated sent me though aren't they? I mean what can be different?no there are more shims for diff. places.