Revo - 4s 9XL

OK good. Briand, do you have stock diff in your revo???
And for the tranny gear, that's what i'am think, keep the plastic is much easier to work with.
And for the tranny, i don't want to have reverse, and my first goal is to keep the mechanical break, because i don't want to pull current from the batteries for breaking.

For the 9XL motor with the RCM heatsink, does the wires of the motor clear the rear upper suspension arm????