I have a Nitro Rush that, ever since I went off a jump and landed on the throttle, won't move. The engine will start fine but it just won't move and it makes a grinding sound when I rev it up and it won't move. The spur gear isn't stripped and it moves freely. Could this be a tranny or diff problem? I hove not, since the tranny is a pain to take out! [8D]

to check it its your diff try turning a rear wheel and see if the other one moves in the oppisite direction, if it is the dif the other wheel won`t move. But more than likely its you tranny.

good luck Dar

Sorry for the delay, I hadn't noticed that anyone had replied. I checked it out today and the diff and tranny were both fine; not gears were worn or stripped. Also all the pins were in place and the slipper clutch was in good condition. I also took off the clutch bell and the clutch looked good too. What else could be wrong?

maybe the "pin" in the rear or front outdrive(the dogbone outdrives near the brakes)loosened or fell out?

Nope, I've checked all the pins and they are all there.

Did you chackk all your spider gears inside the cup?

Yes. I don't think I'll be able to run it today because its still unassembled.

All the gears and pins are fine, dog bones are in and fine, slipper and spur are fine, clutch bell is fine............ WHat about your clutch shoes? Are you running the plastic hex hubs? are those fine?

The clutch shoes and springs are good and so are the wheel hubs.

Is your brake melted?man if everything is good and nothing is broken, then I have no clue

The brake is fine. I think I'll just reassemble it tomorrow and tighten up the slipper clutch.