Remanufactured Rear Axle assemblies are completely disassembled and thoroughly cleaned and reassembled using new wear parts. Units are assembled, sealed and include backing plates, axle shafts and fluid. Product Features:Rear axles are assembled with backing plates & axle shafts, and filled with fluid prior to shippingAxles are fully painted & shipped securely in environmentally safe and recyclable containers that are the perfect size for returning your original coreOur complete Rear axle assemblies mean you just hang brakes, connect suspension & go! Your installation will be simple and trouble freeRemember to match axle ratio to original. For 4WD rear axle must match front axle ratio