Originally Posted by
hatrecide
looks like to me that the drive pins are fine. i tried tightening the nut on the big gear and nothing. when i spin the big gear with my hand while its on the ground it spins freely trying to grab a little. but when i spin it in reverse it grabs and the car wants to move back ward dont know if this is correct. same when i spin the wheels they grab and the gear spins but will let go and spin freely
try this...grab that gear with ur hand and try to push that truck. see if that nut is moveing while the gear is stopped... if so your slipping is happening there.