My 10 year old son got the Senton 4x4 for Christmas and loves it. He really loves the look of the desert racer type trucks and so ordered an extra set of wheels/tires to put on the back. I modeled up some simple parts and had a buddy print them on his 3d printer to make a frame to bolt the extra tires onto. We then cut the body and the result is below. Keep in mind this is really just a mod for looks, we will have to take the tires off for any rough driving (we broke the first version of the frame in less than 5 mins). Anyway I thought it turned out pretty good and thought I would share.
KW
KW