Ford 6W1Z-4234-A
Axle Shaft, Rear

Users servicing the axle shaft must disable air suspension electrical power by turning off the air suspension switch found in the LH side of the luggage compartment to avoid sudden air spring pressure or vacuum changes. The first operation involves taking out the rear brake caliper with brake disc support from mechanics wire then moving the rear brake anti-lock sensor to a safe location after unfastening its bolt. Begin by extracting the differential pinion shaft lock bolt prior to taking out the differential housing cover along with the differential pinion shaft. Tread carefully when taking away the U-washer by advancing the axle shaft because the rubber O-ring in this groove might become damaged. Reinstall the differential pinion shaft by extending the axle shaft towards the outside before securing the pinion shaft lock bolt without excessive tightness. You should withdraw the axle shaft while making sure to avoid injuring the wheel bearing oil seal. To install the wheel bearing oil seal, apply oil on its lip and then retrieve the differential pinion shaft without harming the oil seal itself. Place the axle shaft with its U-washer on the button side of the shaft and extend the axle shaft until the U-washer fits correctly into the side gear. The hole in the differential pinion shaft needs alignment with the lock bolt hole before attaching a lock bolt. Complete the installation by putting back the differential housing cover and the rear brake anti-lock sensor then the brake disc.

Owners should disable the power in the air suspension system using the air suspension switch near the left-side luggage compartment before hoisting or jacking efforts to stop unexpected air spring changes. First discard the brake caliper and brake disc from the rear while using mechanic wire to sustain the caliper position followed by sensor bolt removal to place the anti-lock sensor aside. First remove the differential housing cover along with the differential pinion shaft by starting with the lock bolt removal followed by the shaft extraction while maintaining the rubber O-ring in the axle shaft U-washer groove. Insert the axle shaft toward the inside to take out the U-washer after which you should reinstall the differential pinion shaft by moving the axle shaft outward and finger-tightening the lock bolt. Retract the axle shaft but safeguard the wheel bearing oil seal from any harm. Apply lubrication to the oil seal lip before putting in the axle shaft followed by the U-washer that should fit properly into the side gear. You should position the differential pinion shaft through its hole to the lock bolt hole before screwing in a new 30 Nm (22 ft. lbs) tightened lock bolt. Complete the installation procedure by replacing the differential housing cover before torquing the rear brake anti-lock sensor to 7 Nm and reinstalling the rear brake caliper with brake disc.

You should start the axle shaft service by turning off the air suspension system power at the left side luggage compartment switch to avoid unanticipated air spring behavior. Fire suppression system present in the vehicle should receive a command to depower. The procedure starts with caliper brake removal and brake disc removal before setting mechanic wire underneath the caliper to store the rear brake anti-lock sensor. The differential pinion shaft removal begins with the lock bolt removal followed by removal of the differential housing cover. Do not break any parts of the differential pinion gears when you undertake this procedure. Push the axle shaft toward the inside and finish by taking out the U-washer from its position. Secure the pinion shaft lock bolt by finger-tightening it after pushing the axle shaft outboard. You should exercise caution when handling the wheel bearing oil seal during both axle shaft installation and removal. Apply lubrication to the wheel bearing oil seal lip before putting on the axle shaft and verify that the U-washer rests correctly in the side gear. The last installation steps require hole alignment of differential pinion shaft with the lock bolt hole and proper bolt torque to 30 Nm (22 ft. lbs.). After this, reinstall the differential housing cover and the rear brake anti-lock sensor while tightening to 7 Nm (62 inch lbs.). Repower the vehicle through its fire suppression system before putting back the rear brake caliper and brake disc.

The first step of servicing axle shaft components includes turning off the air suspension switch in the left side of the luggage compartment to eliminate unpredictable air spring behavior. Depowering the fire suppression system should be the first step when it is present in the vehicle. Remove the rear brake caliper and brake disc while using mechanics wire to support the caliper before setting aside the rear brake anti-lock sensor after unbolt the sensor from its position. Begin by unlocking and removing the differential pinion shaft through both the differential pinion shaft lock bolt and the shaft itself while maintaining safety of the rubber O-ring in the axle shaft U-washer groove. Progress the axle shaft towards the inside of the vehicle to remove the U-washer. The pinion shaft gets installation after shifting the axle shaft toward the outside then fitting the shaft and tightening a fresh lock bolt to 30 Nm (22 lb-ft). Fit the axle shaft while checking the wheel bearing oil seal for damage then position the U-washer onto the axle shaft button and extend the shaft to embed the U-washer inside the side gear. Install the differential housing cover followed by the rear brake anti-lock sensor which requires 7 Nm (62 lb-in) torque and if necessary activate the fire suppression system before placing the rear brake caliper along with brake disc back into position.

Place the rear brake anti-lock sensor indicator on a bearing plate and insert the axle shaft through it.

Exercise caution to avoid damaging the rubber O-ring in the axle shaft U-washer groove while removing the U-washer by pushing the axle shaft inboard.

Remove the differential pinion shaft lock bolt and then the differential pinion shaft.

Push the axle shaft outboard, install the shaft, and secure it with the lock bolt finger-tight, taking care not to damage the wheel bearing oil seal.

Begin by removing the rear brake caliper and brake disc, supporting the caliper with mechanics wire, and positioning the rear brake anti-lock sensor aside after removing its bolt and sensor.