I don't understand

[_paralyzed_]

an e-maxx transmission spins opposite of a t-maxx(or revo) transmission, so you have two options. 1. flip the diffs 2. flip the tranny Switching the wires may have solved your problem but when running forward your esc may actually be putting out reverse power which means no brakes and instant switch to forward power when you try to apply the brakes, and unless your esc is setup for %100 reverse power you may not be getting full power when running forward. I prefer flipping diffs to turning the tranny, but it depends where you need the weight of the motor

[_paralyzed_]

p.s. if the tranny is in the normal e-maxx way and you left the diffs alone your esc is probably running backwards, standard mm programming allows reverse to stop to forward transitions, but when going forward you have to stop, wait three seconds, then you get reverse so, can you go reverse to forward? or do you have to wait three seconds after reverse to go forward, cause then you are backwards, and if you can go straight from forward to reverse you are backwards