Made from 1/4" solid Delrin this skid is a direct bolt on, you use the 2 inner holes to attach to the chassis. You can use either the stock transmission or an Axial SCX10 transmission. With moving the links closer together this will give you better triangular geometry. This will require to new lower links, the fronts are 4-3/4" eye to eye, the rears are 5" eye to eye.