This repair kit is designed for servicing both sides of the rear axle on C5 HDI vehicles.It includes all necessary components for a complete shaft and rear gear bearing repair on the left and right sides.The kit contains: 2 inner bearings (chassis side), 2 outer bearings (wheel side), 4 rings, 4 spy connectors, and 2 shafts.Installation is intended for the left rear (driver's side) and right rear (passenger's side).Compatible with OEM reference numbers: 513326, 513326, 513268, 517912, 373918, 513267, 514327, 515414, 75472408.Also matches reference number KS56605.