Difference between the Gorillamaxx G2, G3 & G4 chasis

[RC-Monster Mike]

Sam,
The single speed tranny can be mounted on either the 2 forward-most holes or the 2 rear-most holes. If using a motor mount that bolts to the tranny, it doesn't matter which you choose as long as the tranny is properly oriented(for output shaft position). When using the Gorilla mount, it will be obvious where the tranny needs to be. :-)