· Tag all hoses, wires, and tubes and note their positions before removal.
· Cap and plug all tubes, hoses, and fittings upon removal.
· Remove cable ties as necessary.
· Ensure all hoses, wires, and tubes are disconnected and clear before removal.
· Keep shims for assembly.
Remove bolts securing panhard rod and remove panhard rod.
Remove nut securing tapered ball joint on steering drag link.
Disconnect steering drag link from axle.
To prevent personal injury, ensure air is exhausted from primary and secondary pneumatic systems
prior to starting work. Failure to comply may result in injury or death to personnel.
Disconnect four pneumatic connections for front brakes.
Disconnect pneumatic connections to front Ride Level Valves (RLV).
Disconnect pneumatic connection for front differential lock actuating valve.
Disconnect electrical connection for front differential lock actuating valve.
The front axle assembly is heavy. To avoid personal injury, exercise extreme care when manually
handling axle. Failure to comply may result in injury or death to personnel.
Support front axle assembly with floor jack and remove eight bolts securing four control arms to axle.
Remove front axle.
Installation of the front axle housing assembly is the reverse of the removal procedure with attention given to the
Ensure all fittings are tightened.
Ensure all pneumatic connections are correctly connected.
Ensure all electrical connections are correctly connected.
Perform functional check of electrical and pneumatic systems associated with rear axle. Test drive vehicle to
ensure correct operation of brakes.