i hope you havent puschased a rc yet cause the ecx trucks they are good but they come ith a slow brushed motor out of the box unless you pay 2x as much and get the brushless version of their trucks id suggest looking on hobbyking at their rtr truck they are brushless and cheaper then the ecx trucks ( i regreted buying a ecx torment because the week after i bought it hobbyking release the tunigy troopers which are about 10x better in performance and looks, they are planted to the ground and not flipping over like a pig every time you turn)

4wd
http://hobbyking.com/hobbyking/store...uggy_RTR_.html


have heard nothing but good things about these aslong as they are maintained and if the wires are tucked away right(everyone that ive seen witha problem its usually the esc and its because the rx wire that comes from the esc rides up against the spur gear...)

2wd
http://hobbyking.com/hobbyking/store...ruck_RTR_.html

Pretty much a Stampede monster jam clone ^