This is an upgraded axle design made to resemble old military axles, rockwell 5 ton axles that were used on 1980's era Monster Trucks. The files consist of a two piece axle casing, 2 piece hubs, and Suspension mounts for shocks and links and/or leaf springs. I recently added a bracket to mount the servo behind the axle. To complete these axles you need the following parts.

1. 5mm to 6mm aluminum shaft couplers https://www.ebay.com/itm/Shaft-Coupling-5mm-to-6mm-Bore-L20xD12-Robot-Motor-Wheel-Rigid-Coupler-Red-2-PCS/323735699060?hash=item4b6026be74:g:VJoAAOSwvXReqE79
2. Traxxas Tmaxx 3.3 complete Differentials
3. Kyosho Mad Crusher Hub Carriers (You will cut these to length), Knuckles and bearings, 17mm hubs, dog bones shafts (you will cut these to length), outer axle shafts
4. JConcepts Tribute Wheels. Designed to bolt wheel directly to printed hub using the 6 hole pattern and M3 screws.
5. Width of axle with wheels installed is approximately the same width as a Tamiya TXT-2 and is adjustable to preference based on how short you cut the Hub Carriers.