Ford E7UZ-4234-E Shaft Assy - Rear Axle

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Remove the right side axleshaft.

The Dana 44-IFS-HD is available on F250 4x4s.

Disconnect the vent tube and discard the hose clamps.

It is recommended that operations on these models be limited to those described in the Chapter. For repair or overhaul, it is advised to remove the axle assembly and take it to a rebuilder or exchange it for a new or reconditioned unit.

Support the weight of the axle on a floor jack and remove the nuts from the spring U-bolts. Remove the bottom clamping plates.

The final tightening of the axleshaft retaining bolts should be done after the wheel lug nuts have been tightened, if the wheel was removed.

Carefully insert it through the knuckle bore, being careful not to damage the axle or seals. Engage the axle spline with the side gears of the differential and push the axle into its correct position. Install a new RDS seal on the knuckle end of the axle shaft with the lip of the seal facing towards the spindle. Coat the seal face with grease.

The rear axle assemblies covered by the manual are of two designs: those with semi-floating axleshafts and those with heavy-duty full-floating axleshafts.

Lower the axle assembly on the jack and withdraw it from the rear of the vehicle.

Raise the vehicle and support it by placing jackstands under the frame members.

The Dana 50-IFS was available on F250 and F350 4x4s and is now an option on the F250 only.

Installation is the reverse of removal. Hold the axleshaft level to engage the splines at its inner end with those in the differential side gear. Always use a new gasket or O-ring on the flange and keep both the flange and hub mating surfaces free of grease and oil. Use new bolts and lock washers or a thread locking compound.

The code appears as a number or letter/number combination in the "Axle" column of the label.

Most axle housing covers are sealed with RTV sealant rather than a gasket. Make sure the machined surfaces on both cover and carrier are clean and free of oil. Apply a continuous bead of the sealant to the carrier casting face, inboard of the cover bolt holes. Install the cover within 15 minutes of the application of the sealant and tighten the bolts in a criss-cross pattern to the torque.

Remove the disc brake calipers and support the caliper on the vehicle's frame rail.

Add 2 oz. of Ford part No. EST-M2C118-A friction modifier or equivalent.

Insert the wheel bearing and seal remover, T85L-1225-AH or equivalent, and a slide hammer into the axle bore and position it behind the bearing so the tanks on the tool engage the bearing outer race. Remove the bearing and seal as a unit.

Loosen the axleshaft retaining nuts by inserting a socket and extension through the hole provided in the outer axle flange (wheel interface). Rotate the axleshaft to allow access to all four nuts. Remove the nuts.