Ok-
I bought one of these from Wal-Mart. The electronics are basically JUNK- Soooo- Modification time !!
1. The motors and gearbox are ok.
2. Remove everything eccept the motors and gearbox.
3.I only use this at home, so I used some 72mhz aircraft radio equipment.(Shhhhhh !!)
4. Parts
1.GWS 6 channel receiver/ Futaba 6 ch transmitter
2. TWO GWS 5 amp electronic speed controls- one for each track.
3. TWO 7.2vdc 2000 mah Nimh battery packs- on for each track .
4. ONE GWS V-tail mixer for proportinal steering(it mixes the speed controls to work on one stick)
5. TWO micro servos and two micro switches for reversing the battery polarity for reverse.
6. One on/off switch
7. Sepatate battery pack for the receiver- cut the RED wire on the ESc's to disable the BEC.
8. I opened the top rear hatch for access to my on/off switch, and opened the large rear ramp for access to the batterise for
charging.
It works perfectly. It will move so slowly you can barely perceive motion, but will really hauls a-- under full throttle!!
Steering is via the v-tail mixer and works great- I tried using two separate throttles but it was impossible to control, so the
mixer works great. With the big batterise it really has has power. It will climb a 60 degree incline with no problem. Now, if I could
only get rid of the motor/gearbox sound !!!
This set up will work for any vehicle, but be careful of the size (amperage)of electronic speed controls. Actually, a better solution is
using rc car speed controls with built in reverse, thus eliminating the micro swtiches- but it was what I had on hand.
I also removed the battery box (it un-screws) to give me LOTS of space.