mine works, but it's a bit irregular. if i want to shift, i stop the truck completely, then tap the throttle a couple times to get it shifted. i try not to shift it at all. this sucks because having rev was one of the reasons i bought a warhead in the first place. now it just takes up space because my revos are so much better. i also have a huge pile of spare parts for a warhead taking up space too. i think it's warhead liquidation time!