ive burnt up more spur gears then you want to know about. melted a few too, the whole center hub was just gone, i was in a race on a track and the truck really seemed to be "hooking up" really well, next thing i knew it was free revving. the whole center hub where the frictions disks rub the little pegs in the spur gear were melted. disks fused to the spur gear too.
you think your breaking stuff, nitro tears rear end gears up, new sun gears used to run me 30 bucks, and they sell it with plastic gears, so you will someday have to up grade to the metal gears, and then they still blow up.
then the damn motor would vibrate loose and move the clutch gear away from the spur gear, another 3 bucks in the trash lol
oh, and shock oil is over rated lol after the first bottle of oil was gone i used them dry, add a few spacers to tighten up the spring rate some and had at it. bust a lower A arm, and the shock always split open.
