Nothing but problems putting this thing on my Rustler. Things don't line up properly, no instruction manual, and overall, getting the transmission mounted up to the Rustler was just a bad experience. The actual transmission case fit together and is whisper quiet with all the gears in there lubed up with some moly grease, but putting it onto the chassis is absolute hell.

Who knows, maybe I screwed up somewhere (I'm thinking that's unlikely though, since all the pieces on the transmission itself went together perfectly, I've rebuilt the tail end of my Rustler numerous times, and I dremeled the chassis so that the tranny lined up with stock holes, but when it came time to put the assembly onto the chassis... well, things didn't exactly work out so well).
I'm sorry to say I regret buying this transmission case.