i blew first gear and reverse during normal use...i don't over load the drive train doing dounuts on bitumen.
the header snaped since the body mounts way to close to the exhaust system (out of the box) and any impact on the tray flexes the body and hits the header.

also, the exhaust pipe hanger needs to be keyed, otherwise the set screw comes loose all the time, even with loctite. this causes the coupler to split.

the pushrod ball ends become loose after a few decent crashes (those sort of back straight flat out cartwheels when you hit a bump you didn't see). this results in sloppy suspension and a truck that begins to sit lower when its static.
i thought it was strange that the ride height kept getting lower and i had to keep on increasing the pre-load.
i then realized that all the pushrods where elongated.

plus i whent to change to the long travel rockers and the bolt holding the rocker together was insanly tight, so i gave up and didn't change to long travel.

on the other hand, the arms are way more durable than the t-maxx. my t-maxx arms snap like twigs. i haven't snapped a revo arm yet, so thats a good thing.

i am just fed up of my traxxas vehicles lasting a few tanks before something else breaks, so i got a hellfire and a CRT.