Includes rear differential, axle tubes, axle assemblies, brake assemblies, and brake drums. This unit replaces the complete rear end of the cart with a hybrid rear end made to outperform the factory EZGO one. It uses Club Car style axle assemblies so spun hubs are a thing of the past! Employs a higher speed gear ratio ( 12:31) for greater top speed All while matching up perfectly with the factory TXT motor or any motor using the same 21 tooth spline count *** Comes with 1 Year Warranty - manufacturer defects only *** USES 80W90 GEAR OIL, DO NOT USE MOTOR OIL