I'll try to work on some other pics. The "rear end" is 2 RC12 motor plates. The spur is mounted in a Traxxas TCP diff. You are right about the offset weight of the motor-it's a consequence of direct drive. Yes, the rear body mounts are attached to the rear uprights. I had to try it. I think I'm going to go to standard rear mounts. The ones attached to the rear uprights have a tendency to "lay over". It would probably help tp have some fresh sticky tires also. The ones I used are quite old. Don