Grand Cherokee. A component which prevents a leak or provides a Sealing surface at the Drive Axle Shaft Housing. A round Ring used to Seal between the Differential Lock Actuator and it's mounting surface. A round Ring used to Seal between the Drive Axle Shaft Housing and it's mounting surface. Axle Shaft O-Ring. Drive Axle Shaft Seal. Actuator o -. Differential cover. Differential Lock Motor O -. Drive O -. Housing tube o -. Included with: Differental carrier assembly, Gear assembly.