Weight 17.6 lbs Height 4.5 in Width 4.5 in Length 31.4 in ABS Ring Included Yes Axle Boot Material Neoprene Axle Nut Size Hex M221.5 Axle Nut Included Yes Axle Nut Locking Type Threaded Slotted Axle Nut Thread Size M221.5 Boot Color Black Cotter Pin Included No Installation Type Direct Replacement Lubrication Type Molybdenum Disulfide Grease Lithium Fasteners Included No Hazardous Material No Internal Clamp Included Yes Input Shaft Connection Type Splined Included N/A Number of Internal Splines 26 Teeth Number of External Splines 24 Teeth Output Shaft Connection Type Splined Overall Compressed Length 25.75 in / 654 mm Shaft Material 40CR Surface Finish Black Coated