Originally Posted by
HornyToad
Second rear diff in as many races. Pinion strips... its a gear diff. Took extra care this time shimming it, but I need to learn to properly mesh the gears. Any tips on where should teeth meet? I am not sure if I need to move the pinion or the ring.
Will know if I did a better job this time on sunday...
Strange that you are stripping the rear bevel gears. Are you running big horsepower classes? I've yet to shred the ring or input gears even after many big races this year.
As mentioned you want to shim the diff so that the ring gear sits closer to the input gear (closer teeth mesh). I probably have 2 or 3 .1mm shims on the ring gear side. I then sometimes add 1 .1mm shim on the opposite side so that the gear mesh doesn't get too tight due to play. I don't shim the input gear because it doesn't help me any.
Shimming is an 'artform' but you start to get a good feel after a while
Just make sure the gear teeth are max fully engaged after shimming and if they then feel bound up then remove 1 shim or use a thinner shim.