If you run on bumpy terrain or like to launch off big jumps, install the LT rockers. I recommend upgrading to the optional pink springs in front (part#5443) and purple rear springs (part#5445). They are stiffer than the supplied LT springs and improve handling quite a bit. I also recommend mounting the pushrods in the outermost holes in the A-arms. This helps reduce the possibility of the truck rolling when cornering. Make sure you brake before cornering and get back on the throttle as you turn to keep the front tires pulling and prevent rolling. Make sure you have the correct pistons in the front and rear shocks (check your manual). This is an awesome jumping and bashing setup.