Bronco L6-300 4.9L VIN Y 1-bbl (1983)
Full-Floating Axle
1.
Set parking brake and loosen axle shaft bolts.
2.
Raise and support rear of vehicle so that axle is parallel with floor.
3.
Remove axle shaft bolts.
4.
Remove axle shaft and discard gasket.
5.
Pry out locking wedge with screwdriver.
6.
Raise wheel until weight is removed from wheel bearing.
7.
Remove wheel bearing adjustment nut.
8.
Remove outer bearing cone and pull wheel assembly from axle.
9.
Drive inner bearing cone and seal out of wheel hub with brass drift.
10.
Inspect bearings and races and replace if worn or damaged. Drive races from wheel hub with brass drift.
11.
Lubricate bearing cone and roller assemblies and place inner assemblies into wheel hub. Install new hub inner seal.
12.
Wrap spindle threads with tape, then slide wheel assembly onto axle housing spindle and remove tape.
13.
Install outer wheel bearing and start adjuster nut. Lower wheel to ground.
14.
While rotating wheel, torque adjusting nut to 120-140 ft. lbs. Back off the nut to obtain 0.001---0.010 inch endplay (1/8-3/8 turn). If nut or locking
wedge are damaged or do not allow for proper endplay they should be replaced.
15.
Position locking wedge in key way slot, making sure it is not bottomed against the shoulder of adjusting nut.
16.
Install axle shaft and new flange gasket, then install retaining bolts and torque locking bolts to 40---50 ft. lbs.
17.
Adjust brakes.
18.
Remove supports and lower vehicle.
Semi-Floating Axle
1.
Raise and support vehicle.
2.
Remove wheel and brake drum.
3.
Remove cover plate and discard gasket.
4.
Remove differential pinion shaft lock screw and the shaft.
5.
Remove C-clip from button end of shaft by pushing inward on other end.
6.
Pull shaft from axle tube. Do not rotate differential side gears.
7.
Remove and discard oil seal from axle tube.
8.
Pull bearing from axle tube.
9.
Lubricate new bearing and install in axle tube.
10.
Lubricate and install new oil seal.
11.
Insert shaft into axle tube, making sure splines engage side gears, then install C-clip and pull shaft outward until the clip locks.
12.
Install pinion mate shaft, aligning lock pin holes, and pinion gear side washers.
13.
Install new lock screw and torque to 8 ft. lbs. on 1980---81 models, or 20---25 ft. lbs. on 1982---87 models.
14.
Install cover plate and gasket. Torque bolts to 30---40 ft. lbs.
15.
Install wheel and drum assembly.
16.
Remove supports and lower vehicle.
Ford Integral Carrier Type Axle
1.
Raise and support vehicle, then remove rear wheel and brake drum.
2.
Loosen rear housing cover screws and allow lubricant to drain, then remove cover.
3.
Remove differential pinion shaft lock bolt and differential pinion shaft.
4.
Move flanged end of axle shaft inward and remove C-lock from end of shaft.
5.
Remove axle shaft from housing by pulling outward.
6.
Reverse procedure to install. Apply Loctite EOAZ-19554-B to pinion shaft lock bolt threads, then torque lock bolt to 15-30 ft. lbs.
Ford Removable Carrier Type
Removal, Units w/Ball Bearing
1.
Remove wheel assembly.
2.
Remove brake drum from flange.
3.
Working through hole provided in axle shaft flange, remove nuts that secure wheel bearing retainer.
4.
Pull axle shaft out of housing. If bearing is a tight fit in axle housing, use a slide hammer type puller.
5.
Remove brake backing plate and secure to frame rail.
6.
If the axle shaft bearing is to be replaced, loosen the inner retainer by nicking it deeply with a chisel in several places. The bearing will then slide
off easily.
7.
Press bearing from axle shaft.
8.
Inspect machined surface of axle shaft and housing for rough spots that would affect sealing action of the oil seal. Carefully remove any burrs or
rough spots.
Installation
1.
Press new bearing on shaft until it seats firmly against shoulder on shaft.
2.
Press inner bearing retainer on shaft until it seats firmly against bearing.
3.
If oil seal is to be replaced, use a hook-type tool to pull it out of housing. Wipe a small amount of oil resistant sealer on outer edge of seal before it
