Yah well this thing was used hard when my brother bought it for $60 then he gave it to me for 2 2200mah Nimh batteries because he didnt want it. If i drilled bigger holes in the Trans gears they could almost be plastic bushings. Yet the diffs have no wear at all lol. It woulda costed more for new gears and the forward only kit and a new slipper and spur than i got the emaxx tranny for. Btw i lucked out they run $65-85 and i found this one new for $48. I kinda find more fun in custom work on rc cars than driving them except my pede i love it even tho it is still brushed. I'll prolly use this maxx a lot tho because it is my first big scale 4s rc car. And also i prefer owning more rc cars over owning a couple really expensive ones. Next is a wheely king that I'll put traxxas 2.8 talons on lower it a little for mud bogging. Maybe when my 12 year old brother isnt looking ill steal his 4 screw diffs lol