REMOVAL & INSTALLATION
See Figures 1, 2 and 31984-85 Models
The wheel hub and knuckle must be removed for bearing replacement or servicing. A special puller is required to remove and install the hub. (Ford Part Number T81P-1104-A, T81P-1104-C and adapters T81P-1104-B or T83P-1104-AH). The adaptors screw over the lugs and attach to the puller, which uses a long screw attached to the end of the stub shaft to pull off or install the hub.
- Remove wheel cover and slightly loosen the lugs.
- Remove the hub retaining nut and washer. The nut is crimped staked to the shaft, which means that one portion of the nut has been hit with a hammer and chisel to make the nut unround. With an unround nut, more force is needed to remove the nut. Therefore, use a socket and sufficient torque to overcome the locking force of the crimp. It would be better if you had access to an air compressor and an impact gun.
- Raise the front of the car and support safely with jackstands. Remove the tire and wheel assembly.
- Remove the brake caliper and disc rotor.
- Disconnect the lower control arm and tie rod from the steering knuckle. Loosen tow top strut mounting nuts, but do not remove them. Install the hub remover/installer tool and remove the hub. If the outer bearing is seized on the hub remove it with a puller.
- Remove the front suspension knuckle.
- Pull out the inner grease shield, the inner seal and bearing.
- Remove the outer grease seal and bearing.
- If you plan to reuse the bearings, clean them in a safe solvent. After cleaning the bearings and races, carefully inspect them for damage, pitting, heat coloring etc. If damage etc. has occurred, replace all components (bearings, cups and seals). Always replace the seals with new ones. Always use a new hub nut whenever the old one has been removed.
- If new bearings are to be used, remove the inner and outer races from the knuckle. A three jawed puller on a slide hammer will do the job.
- Clean the interior bore of the knuckle.
- Remove the snapring that retains the bearing in the steering knuckle.
- Position the knuckle, outboard side up, under a hydraulic press with appropriate adapters in place, and press the bearing from the knuckle.
- Clean the interior bore of the knuckle.
- Install the new bearing cups using a suitable driver. Be sure the cups are fully seated in the knuckle bore.
- Pack the wheel bearings with multi-purpose lubricant (Ford part number C1AZ-19590-B or the equivalent). If a bearing packer is not available, place a large portion of grease into the palm of your hand and slide the edge of the roller cage through the grease with your other hand. Work as much grease as you can between the bearing rollers.
- Put a sufficient amount of grease between the bearing cups in the center of the knuckle. Apply a thin film of grease on the bearing cups.
- Place the outer bearing and new grease seal into the knuckle. Place a thin film of grease on all three lips of the new outer seal.
- Turn the knuckle over and install the inner bearing and seal. Once again, apply a thin film of grease to the three lips of the seal.
- Install the inner grease shield. A small block of wood may be used to tap the seal into the knuckle bore.
- Keep the knuckle in the vertical position or the inner bearing will fall out. Start the wheel hub into the outer knuckle bore and push the hub as far as possible through the outer and inner bearings by hand.
Prior to installing the hub, make sure it is clean and free from burrs. Use crocus cloth to polish the hub is necessary. It is important to use only hand pressure when installing the hub, make sure the hub is through both the outer and inner bearings.
- With the hub as fully seated as possible through the bearings, position the hub and knuckle to the front strut.
- Position the knuckle, outboard side down on the appropriate adapter, then press in the new bearing. Be sure the bearing is fully seated. Install a new retainer snapring.
- Install the hub, using tool T83T-1104-AH3 or equivalent, and press into the bearing. Check that the hub rotates freely.
- Lubricate the stub shaft splines with a thin film of SAE 20 motor oil. Use hand pressure only and insert the splines into the knuckle and hub as far as possible.
Do not allow the hub to back out of the bearings while installing the stub shaft, otherwise it will be necessary to start all over from Step 7.
- Complete the installation of the suspension parts.
- Install the hub remover/installer tool and tighten the center adapter to 120 ft. lbs. (13 Nm), this ensures the hub is fully seated.
- Remove the installer tool and install the hub washer and nut. Tighten the hub nut finger tight.
- Install the disc rotor, caliper etc. in reverse order of removal.
- Install the tire and wheel assembly and snug the wheel lugs.
- Lower the car to the ground, set the parking brake and block the wheels.
- Tighten the wheel lugs to 80-105 ft. lbs. (108-22 Nm).
- Tighten the center hub nut to 180-200 ft. lbs. (244-271 Nm). DO NOT USE A POWER WRENCH TO TIGHTEN THE HUB NUT!
- Stake the hub nut using a rounded, dull chisel. DO NOT USE A SHARP CHISEL.
- Road test the vehicle.
- Remove the wheel cover/hub cover from the wheel and tire assembly and loosen the nuts.
- Remove hub nut retainer and washer by applying sufficient torque to nut to break the locking tab and remove hub nut retainer. The hub nut retainer must be discarded after removal.
- Raise and safely support the vehicle. Remove the wheel and tire assembly.
- Remove the brake caliper by loosening the caliper locating pins and rotating caliper off rotor starting from lower end of caliper and lifting upward. Do not remove caliper pins from caliper assembly. Lift caliper off rotor and hang it free of rotor. Do not allow caliper assembly to hang from brake hose. Support caliper assembly with a length of wire.
- Remove the rotor from the hub by pulling it off the hub bolts. If the rotor is difficult to remove from the hub, strike the rotor sharply between studs with a rubber or plastic hammer. If rotor will not pull off, apply rust penetrating fluid to the inboard and outboard rotor hub mating surfaces. Install a jaw puller and remove the rotor by pulling on rotor outside diameter and pushing on hub center in. If excessive force is required for removal, check rotor for lateral runout. (Lateral runout must be checked with the nuts clamping the hat section of the rotor.)
- With the rotor removed, unfasten the rotor splash shield.
- Disconnect the lower control arm and tie rod from knuckle (leave strut attached).
- Loosen the strut top mount-to-apron nuts.
- Install a suitable hub removal tool and remove hub/bearing/knuckle assembly by pushing out CV-joint outer shaft until it is free of assembly.
- Support the knuckle with a length of wire, then remove the strut bolt, and slide the hub/knuckle assembly off the strut.
- Carefully remove the support wire and transfer the hub/bearing assembly to the bench.
- Install a front hub puller with jaws for pulling on the knuckle bosses, and remove the hub.
When using a hub puller, ensure the shaft is centered and clears the bearing inside diameter and rests on the end face of the hub journal. This will prevent damage to the tool, hub and other suspension parts.
- Remove the snapring which retains the bearing knuckle assembly and discard the snapring.
- Using a hydraulic press, place a suitable front bearing spacer on the hub, with the step side up toward the press. Install the bearing removal tool on the bearing inner race and press the bearing out of the knuckle.
- Once the bearing has been pressed out, discard the bearing.
- On the bench, remove all foreign material from the knuckle bearing bore and hub bearing journal to ensure a correct seating of the new bearing.
If hub bearing journal is scored or damaged, replace the hub. Do not attempt to service. The front wheel bearings are of a cartridge design and are pregreased, sealed and require no scheduled maintenance. The bearings are preset and cannot be adjusted. If a bearing is disassembled for any reason, it must be replaced as a unit. No individual service seals, rollers or races are available.
- Place a suitable bearing spacer step side down on the hydraulic press plate and position the knuckle on the spacer with the outboard side down. Position a new bearing in the inboard side of the knuckle. Install a suitable front bearing installer on bearing outer race face with the undercut side facing the bearing and press the bearing into the knuckle. Ensure that the bearing seats completely against the shoulder of the knuckle bore.
Ensure proper positioning of bearing installer during installation to prevent bearing damage.
- Install a new snapring in the knuckle groove using snapring pliers.
- Place a suitable front bearing spacer on an arbor press plate and position the hub on the tool with lugs facing downward. Position knuckle assembly on the hub barrel with the outboard side down. Place a suitable front bearing remover on inner the race of the bearing and press down on the tool until the bearing is freely in the knuckle after installation.
- Suspend the hub/knuckle/bearing assembly on the vehicle with wire and attach the strut loosely to the knuckle. Lubricate the CV-joint stub shaft splines with SAE 30 weight motor oil and insert the shaft into the hub splines as far as possible using hand pressure only. Check that the splines are properly engaged.
- Install a suitable front hub installer and wheel bolt adapter to the hub and stub shaft. Tighten the hub installer tool to 120 ft. lbs. (12 Nm) to ensure that the hub is fully seated.
- Remove the tool and install a washer and new hub nut. Tighten the hub nut finger-tight.
- Complete installation of front suspension components.
- Install disc brake rotor to hub assembly.
- Install disc brake caliper over rotor.
- Ensure outer brake shoe spring end is seated under upper arm of knuckle.
- Install wheel and tire assembly, tightening wheel nuts finger-tight.
- Lower vehicle and block wheels to prevent vehicle from rolling.
- Tighten wheel nuts to 85-105 ft. lbs. (13-22 Nm).
- Manually thread hub nut retainer assembly on constant velocity output shaft as far as possible using a 30mm or 1 1 / 8 in. socket, tighten retainer assembly to 180-200 ft. lbs. (245-270 Nm).
Do not use power or impact tools to tighten the hub nut. Do not move the vehicle before retainer is tightened.
- During tightening, an audible click sound will indicate proper ratchet function of the hub nut retainer. As the hub nut retainer tightens, ensure that one of the 3 locking tabs is in the slot of the CV-joint shaft. If the hub nut retainer is damaged, or more than 1 locking tab is broken, replace the hub nut retainer.
- Install wheelcover or hub cover and lower the vehicle completely to ground.
- Remove the wheel blocks.
- Road test the vehicle.