Diff cup compatability

[bdebde]

Sportwerks and Losi are same. The internals vary (3 variations), LST and muggy have unhardened spiders (silver color) with shims. 8's have no shims on the spiders but shims on the output gears (above the o-ring), not sure if they are hardened (black in color). I like the sportwerks internals; they are hardened (bronze color) and have shims on spiders. Losi also has new diff cups out that have steel inserts for the cross pins (on my shopping list).