http://www.rpmrcproducts.com/products/losi/chassis.htm is the bumper. as for the shocks i bought the full kit. it has all of the spacers you will need. you have to rempove the top shock posts from your stock shock plate (mine is bent badly.lol) and use # 4 screws, nuts and washers. on the piston rod end of the shocks, you take off the traxxas part and put on your stock shock part (the one that attaches to the lower arms. hope that helps.