I recently bought a t maxx 3.3 and everything was going smoothly during the break in process until the fifth tank. The slipper clutch pads burn off. I changed them and the clutch bell started chewing the teeth off of my spur gears. I replaced two and finally I got the gear mess set right and fixed that problem but now I have another problem. When I take off in first gear it runs good but when it tries to kick into second gear it won't and it boggs out and slows down completely. Does anybody know anything that I can try to fix this. Thanks.