Mopar 52114720AA Rear Axle Shaft

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The rear axle assembly, comprising a differential assembly and axle shafts within a hollow housing, supports the vehicle's weight through leaf springs. There are two types of rear axle assemblies: light-duty and heavy-duty. Light-duty axles are semi-floating, supporting the vehicle's weight and transmitting driving forces to the rear wheels. Heavy-duty models use a full-floating axle, where the vehicle's weight is supported by the axle housing. Full-floating axles are identifiable by a large hub from the wheel's center. Operations on these models should be limited due to the need for special tools. If repair is needed, remove the axle assembly for professional rebuilding or replacement. Ensure any replacement axle matches the original in type and gear ratio.

The lower mounting bolts securing the rear shocks to the axle should be removed.

After installing the axleshaft, the hub bearing, hub bearing-to-steering knuckle bolts should be installed and tightened to the torque.

For a full-floating axleshaft, loosen the rear wheel lug nuts, raise the rear of the vehicle, and support it securely on jack stands. Remove the wheel and axleshaft flange bolts.

Detach the vent tube from the axle and seal it.

You can prevent the hub from turning while loosening the nut by using a pry bar between two wheel studs.