[stum]

The new emaxx (3905) tranny is brushless ready and stronger than the revo tranny.. it's lighter and stock 2nd gear only. With brushless torque and good lipo's you don't need a first gear. Infact the entire drive line is ugpraded to revo spec or better than a revo. The new emaxx diff's are revo spec, but they are upgraded and better than the revo diff's (you can drop these in for upgrades to any revo). I will actually be swapping out the revo diff's as well, not sure if I noted that anywhere.

Your question looking at the stock revo 3.3 vs the stock emaxx 3906 tranny would be a good one.. because you have to upgrade it as well; alum idler 2nd gear mod or gorillamax mod. The nice part about it is you can have dual battery setups with the motors on center.. but I wouldn't change to a 3906 emaxx tranny, I would just mod the revo and use the stock tranny if my choice was 3906 tranny vs revo tranny. That is just me.. some still did that mod as well.