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Re: rear axle bearing replacement
REAR WHEEL BEARING/ HUB
Raise the vehicle. Refer to Vehicle Lifting in General Diagnosis.
Remove the wheel and the tire. Refer to Tire and Wheel Removal and Installation in Wheels, Tires and Alignment.
Remove and support the brake caliper. Refer to Brake Caliper Replacement (Front) or Brake Caliper Replacement (Rear) in Brakes.
Remove the brake rotor. Refer to Brake Rotor Replacement in Disc Brakes.
Remove the ABS sensor wire connector.
Remove the four bolts from the control arm.
Remove the hub and bearing from the control arm.
Remove the brake shield from the control arm.
Clean the control arm face and the bore before installing the hub and the bearing.
Notice: Refer to Fastener Notice in Service Precautions.
Install the brake shield and the hub and the bearing to the control arm with the four bolts. Be careful not to drop the hub and the bearing, as it could be damaged. Reconnect the ABS sensor. Tighten the hub and bearing bolts to 70 Nm (52 ft. lbs.).
Install the brake rotor. Refer to Brake Rotor Replacement in Disc Brakes.
Install the brake caliper. Refer to Brake Caliper Replacement (Front) or Brake Caliper Replacement (Rear) in Disc Brakes.
Install the wheel and the tire. Refer to Tire and Wheel Removal and Installation in Wheels, Tires and Alignment. Tighten the wheel nuts to 140 Nm (100 ft. lbs.).
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Jeff is describing how to replace the front wheel bearings. In the front, the bearing is part of a "hub cartridge". Randy is describing how to change the rear bearings on a truck with a "dead" rear axle. The sort of differential which is one massive cast iron assembly from rim to rim. However, your truck has an IRS [Independent Rear Suspension] design. You need to remove the wheels, brakes & the complete rear knuckle assembly. To remove the bearing from the knuckle requires a hydraulic press and a "knife edge" bearing removal tool. I doubt that you have these tools available. If not, find an auto parts store or auto machine shop with these tools. They can press the old bearing out and install the new one for you. Then you can reassemble the knuckle assembly from that point on. The video linked below should help you.
this will depend on the make of vehicle and the type of rear end. Some have a seal in the axle housing that runs on the bearing retainer and others have the seal on the outside of the bearing which means that the bearing has to be pressed of to replace the seal. Others have the seal in the hub and others have the seal running on the face of the axle. To get exact details you will have to specify the vehicle .
The 1999 Ford Expedition is built on an F150 platform. The Expedition uses a 9.75-inch rear axle. The axles are retained with C-clips at the end of the axle shaft, inside the differential carrier. The axle bearings are of the roller type. A failed axle bearing can manifest itself as a noise at the rear wheel or gear oil leaking past the oil seal. When replacing axle bearings, the oil seals must also be replaced. Torque the caliper mounting bolts to 30 foot-pounds. Torque the bolt to 20 foot-pounds with a torque wrench and socket.Click this link below for complete detailed procedure:---http://technoanswers.blogspot.com/2011/06/how-to-remove-rear-wheel-bearings-on.html
This should help.Thanks.Helpmech.
if the seal (s) is leaking you may have a bad bearing... to change.. remove the rear end cover, reach in pull the c clip on left or rt side. pull the axel out the side, use bearing puller to pull the old bearing, install new replacement bearing seal, put in axel, replace clip, reinstall rear cover, sealing properly, fill with rear gear lube to level of fill hole. get a chiltons manual for pictures and more detailed help.
You'll need to remove the rear end cover, remove the pin in the center pumpkin, push axle toward the center of vehicle and remove the axle clip, pull out axle. You may need a bearing puller to remove bearing.
You should be ok replacing the outer seal but check for bearing play or fautly outer wheel bearing before you disassemble. If to much lateral movement in axle shaft it will take out your new seal rather quickley.
Section 05-02A: Axle, Integral Carrier — 8.8-Inch Ring Gear
1994 Town Car, Crown Victoria/Grand Marquis. Workshop Manual
REMOVAL AND INSTALLATION
NOTE: Whenever replacing the rear axle lubricant, use Rear Axle Lubricant XY-90-QL (ESP-M2C154-A) or equivalent. Removal CAUTION: The rear brake anti-lock sensor must be removed before the axle shafts are removed. The rear brake anti-lock sensor is bolted on the rear disc brake caliper anchor plate.
Raise vehicle to desired working height. Refer to Section 00-02 . Remove rear wheel (1007) and tire assembly. Remove rear disc brake calipers (2552) and rear disc brake rotors (2C026) .
Clean all dirt from area of axle housing cover with a wire brush and/or cloth.
Drain rear axle lubricant by removing the axle housing cover .
Push flanged end of the axle shafts toward the center of the vehicle and remove the rear axle shaft retaining u-washer from the button end of the axle shaft .
Remove axle shaft from the rear axle housing , being careful not to damage the inner wheel bearing oil seal (1177) and rear brake anti-lock sensor ring.
Installation NOTE: Check for presence of rear axle shaft o-ring (4A332) on the spline end of the shaft and install if not present. CAUTION: Care must be taken not to let axle shaft splines damage oil seal or bearing assembly.
Carefully slide axle shaft into rear axle housing without damaging rear wheel bearing (1225) or rear brake anti-lock sensor indicator (2C189) . Start splines into side gear and push firmly until the button end of axle shaft can be seen in the differential case .
Install the rear axle shaft retaining u-washer on the button end of the axle shaft splines, then pull the shaft outboard until the shaft splines engage and the rear axle shaft retaining u-washer seats in the counterbore of the differential side gear .
Position the differential pinion shaft through the differential case and differential pinion gears , aligning the hole in the differential pinion shaft with the lock bolt hole. Apply Rear Axle Lubricant to differential pinion shaft lock pin . Install differential pinion shaft lock pin and tighten to 20-41 Nm (15-30 lb-ft).
CAUTION: Differential pinion shaft lock pin must be tightened to specification using Stud and Bearing Mount E0AZ-19554-BA (WSK-M2G349-A1) or equivalent.
NOTE: Axle housing cover must be installed within 15 minutes of application of the silicone rubber or new silicone rubber must be applied. CAUTION: Make sure machined surfaces on both axle housing cover and rear axle housing are clean before installing the new silicone sealant. Inside of axle must be covered when cleaning the machined surface to prevent axle contamination. Tighten the cover bolts in a crosswise pattern to ensure uniform draw on axle housing cover .
Apply Silicone Rubber D6AZ-19562-AA or BA (ESB-M4G92-A or ESE-M4G195-A) or equivalent. Install axle housing cover and tighten retaining bolts to 28-38 Nm (38-52 lb-ft).
Add Motorcraft Rear Axle Lubricant XY-90-QL or KL (ESP-M2C154-A) or equivalent until it is 6-14mm (1/4-9/16 inch) below bottom of fill hole. Add 118.3 mL (4 oz) of Ford Additive Friction Modifier C8AZ-19B546-A (EST-M2C118-A) or equivalent to Traction-Lok axles. Install fill plug and tighten to 20-41 Nm (15-30 lb-ft).
Insert Rear Bearing Remover T85L-1225-AH in bore and position it behind bearing so tangs on tool engage bearing outer race. Remove rear wheel bearing and inner wheel bearing oil seal as a unit, using Impact Slide Hammer T50T-100-A.
Rear Disc Brake Caliper Anchor Plate
Lubricate the rear wheel bearing with Rear Axle Lubricant.
Install rear wheel bearing into the housing bore using Axle Tube Bearing Replacer T78P-1225-A.
CAUTION: Installation of rear wheel bearing or inner wheel bearing oil seal assembly without proper tool may result in an early bearing or seal failure. If inner wheel bearing oil seal becomes cocked in bore during installation, remove it and install a new one.
Install the inner wheel bearing oil seal using Axle Tube Seal Replacer T78P-1177-A. Use Premium Long-Life Grease XG-1-C or K (ESA-M1C75-B) or equivalent between the lips of the inner wheel bearing oil seal .
Go to Jeep and buy a bearings, seals, and collar. The bearing is held in place on the axle by a keeper collar. This must be cut off to get the old bearing and seal off. Use a wizz wheel to cut it and then whack it with a chisle
To get the axle out. Remove rear diff cover, and wheel and start taking apart. It's not a terrible job, but if you aren't very mechanically inclined, take it to a shop. Make sure you use the correct fluid in the differential.