I"ve been running this unit in my E-maxx since June. Not a lot of miles on it yet but so far so good. I'm running 4s lipo 6000mah, it flies. I like having the 2 speed trans, its driveable for track/jumping in 1st and speed runs in 2nd. No problems with the oil staying inside, only minor seepage. Not running dry is very important imo. I've ripped out 2 rear driveshafts, but no trans problems. Two thumbs up on this unit if you can still get one.
would it do good on dual 6 cell 3300 packs? if it would ill tell my frined bryan to take a look at it, he'll prolly get it in 2nd gear for 2 mintes maybe each run, all he wants to do it climb these gravel piles and do wheelie and some small jumps