alright i'll just sell the RCM mount, and get the 3905 tranny, but see i have the tekno ESC mount that mounts to the nitro tranny, i guess id have to ditch it too, its using the single battery mount on the left and the motor on the right, with the new tranny with it throw off the balance as in is the motor closer to centerline??? I may just get the erevo diffs and if the tranny holds up then all is good