Yeah I tried the hobby shops, but the XXT is out of date and noone local has any parts. The assembly/disassembly is pretty straight foward and easy. I ordered parts from http://www.losipartshouse.com/servle...rts/Categories and hope they get here soon. I was the idler gears.
I had the same problem with the xxx-t trans, it ran great on the old novac sped control, and 19 turn trinity brushed motor. Once I put the mm 5700kv combo on 8 cell elite 4500mAh NiMh it ate the teeth right off of the idler gear.