i can help
first, lower the truck as much as possible, that usually means taking out all shock spacers/threading all the way up. as long as the truck is low without dragging, you are fine. you can also call traxxas to see if the 4-tec suspension arms will work, not sure though. next, get some street tires, treaded for not clean surfaces, slicks for clean surfaces. or, if you got the dough, go for foam tires. sedan foams will work. engine wise, dont change mixture, maybe lean out VERY slighty since there is not alot of drag onroad. as for bodies, it doesnt matter as long as it looks rad. so go out and have some fun tearing up the streets! one thing too, the truck handles alot better on the street, so be carefull at first.