Originally Posted by Syber Serulean
having a hard time finding a diff rebuild kit for my hara cyclone. Id buy a brand new diff setup but thats expensive. Can anyone help me out?
I know that you can use Tamiya thrust bearings as the screw in the standard cyclone diff is 2mm (pro spec is 2.6mm).
As far as diff rings, I usually always just sand mine with 400 and 600 grit sandpaper until the grooves are gone. Do it in a figure 8 pattern, and I use one of the diff outdrives as a "handle" to make sanding a little easier. I can't seem to find the part number HB used on those older style diff rings though... Maybe Hiro can jump in.
Diff balls are just plane 3/32 (2.4mm) diff balls that a bunch of other companies use as well. That should take care of the diff rebuild unless there is further damage to the diff.