Revo - 4s 9XL

OK as i can read you have an e-maxx tranny???
I want to convert mine with the stock révo tranny, and think to keep the 2 speed intact with the wide ratio, an maybe put the new robinson racing hardened steel tranny gear set. Only downside of this steel gear set is not sure if i'll can make the jato pin mod in the tranny

And for your motor, you have the black or the purple one??