Originally Posted by
StickyFingaz
FYI, I broke two sets of the Spec-R gear diffs on the first and second battery pack with my 4.5 motor. Sanded the back of the spider gears and everything... Needless to say I can't wait for the AE units to start shipping.
I recently stripped a set of gears in mine also.
I noticed that the mesh was not all that tight. I bought extra shims along with the new carbon gears so I can experiment with the gear mesh. If you sand the backs of the gears too much, this will have an effect on how tightly they mesh together so be careful.