Kraton Keep breaking teeth on rear diff.

[ruizjunior83]

I’ve shimmed them with 2 shins behind main input gear and 3 next to the bearing on the out side for the mesh. And in mid air as I’m fliping (not very high either) I here the clack. And it continues. It was in mid air not a bad landing. For percaution I was jumping into sand. I’ve gone through 3 pairs of gears. I don’t know what else to do.

I’ve replaced the gearbox and still.

 

[arrmaracing]

I’ve shimmed them with 2 shins behind main input gear and 3 next to the bearing on the out side for the mesh. And in mid air as I’m fliping (not very high either) I here the clack. And it continues. It was in mid air not a bad landing. For percaution I was jumping into sand. I’ve gone through 3 pairs of gears. I don’t know what else to do.

I’ve replaced the gearbox and still.

I don't know anyone that puts shims behind the main input gear and the other 3 next to the bearing. Who told you to do it that way?

 

[arrmaracing]

 

[Paultro84]

I’ve shimmed them with 2 shins behind main input gear and 3 next to the bearing on the out side for the mesh. And in mid air as I’m fliping (not very high either) I here the clack. And it continues. It was in mid air not a bad landing. For percaution I was jumping into sand. I’ve gone through 3 pairs of gears. I don’t know what else to do.

I’ve replaced the gearbox and still.

Sounds like to many shims. Rich Duperbash has a vid on it. Check youtube.

 

[joostin420]

Try the HR aluminum diff cup in the rear to start and then the vent and front. Once shimmed it will keep things nice and tight and won’t expand/contract even if they heat up.