Replace your Traxxas vehicle’s stock slipper clutch with this Pro-Built® high-performance center differential. The center differential absorbs driveline shocks to improve durability and distributes power to all four wheels for mind-bending acceleration. The finned aluminum housing helps dissipate heat with a tough 54-tooth, 32-pitch steel spur gear for maximum durability. The sealed differential comes completely assembled and pre-loaded with thick 1 million weight silicone oil to help prevent unloading and ballooning of the front tires. (Center differential requires 32-pitch pinion gear)