Have any of you noticed any slipping of the white gear that is on the drive shaft going to the drive wheel? This all started while I was experimenting with trying to stop the slipping between the drive wheel and the rubber track. What I did was cut a donut out of some foam rubber and stretched it over the drive wheel. It filled in that void where the track's teeth run in. The tank really hauled ass after that but I think it stressed that gear. It is just press fit to the shaft and now it slips a bit. I only notice it when do the super spin thing. I put a drop of cyanoacrylate on the gear but it doesn't stick well to that type of plastic. I'm going to try to knurl the shaft next and see if that helps. This would be so much easier if there were replacement parts available.