Diff questions

In my experience with my big and heavy extended savage aluminum diff cups, with shims and 4 gear diff takes care of the problem. My savage wouldnt handle my axial .32 I ran in it for two years without the upgrades.

I now have been running my savage with a 7XL and 4s and sometimes 5s lipo and the diffs are holding up fine even with the slipper tighten all the way with a metal spur gear. In two years of racing and bashing I only blew the front diff out once with my setup, and that was because I had the throttle pegged and ran into a nasty wall at high speeds. Gotta let go of the throttle when your going to run your front wheel into something hard & fast

I also recommend locking the tranny in second gear, it wont take long before you to break some tranny gears when that sudden power from a brushless motor slams the tranny when shifting from 1st to 2nd.

When the tranny is locked in second and the diffs are shimmed & aluminum diff cups the savage drivetrain is easily as strong as any buggy / truggy that I have used in my experience.

[_paralyzed_]

after all the upgrades (alum. cups, diff housings and bulkheads, 4 spiders shimmed) i found the weak link to be the pinion shaft bearings, they went and I ended up shearing diffs, I haven't had that problem since I ran bocas on the pinion, its the only place I use spendy bearings, but so far they've held up to the o.s. .30