as for axles on these trucks and the frame whats working best or what just working for them on the track and/ or sled pulling. i guess the frame has to be boxed and what about the axles? the front axle on these are supposed to be strong but there leaf springs? will this slow the truck down at all or can i put some traction bars on the front and it be just as good or better then coils? or should it be converted to a coil setup and different axle? also what works best for the rear? Anyone know what smokin93 uses on his set up for axles front and back and if its leafs all around? his truck is bad ass, wouldn't mind doing what ever he did lol.