Traxxas Pro-Built Center Differential - 6780A.

The Pro-Built® center differential absorbs driveline shocks to improve durability and distributes power to all four wheels for mind-bending acceleration. A 54-tooth, 32-pitch steel spur gear provides maximum durability. The sealed differential comes completely assembled and ready to install with 500k silicone oil to help prevent unloading and ballooning of the front tires.

Requires 32-pitch pinion gear.