Replacing Rear Wheel Bearings and Seals. Toyota Maintenance: Replacing Rear Wheel Bearings and Seals. Author: Erik Bibelheimer and Joe Micciche - Novenber, 2. ![]() When a rear axle seal goes bad, it's typically noticeable by gear oil leaking all over a rear. Common causes of axle seal failure are plugged differential breathers or worn wheel bearings. So, if you have a leaking seal, be sure to check the breather. Or better yet. replace it with an extended breather. Axle Shaft Removal and Inner Seal Replacement. To replace a rear axle seal or bearing, the rear axle should be placed securely on jackstands. Place a drain pan under the end of the tube to catch any gear oil which may drip. Once. the tire is off the vehicle, remove the retaining pin from the emergency brake lever mechanism at the backing. If you don't have a flare tool, remember. The brake lines will . Once the nuts are off, grasp the backing plate and pull the entire brake and. That was the easy part. Replacing the wheel bearing and outer seal is the more difficult part since the wheel bearing and its retaining collar are a press-fit onto.With the brake/axle assembly out of the way, the inner oil seal can be pulled from the housing. Using your favorite seal puller or a large screwdriver, just pop the old one out. Once you have the old seal out, check the seal surface and clean, if necessary. Also, clean. any old gasket material from the axle flange, assuring none gets in to the axle tube. Place the new seal into the axle end, and carefully drive it in.
![]() Rear Wheel Bearing Replacement. You may want to consider replacing more than just the wheel bearings. Read through the steps and notes below for more information on. For this seal. I found the front hub 2 1/8. Once the. seal is seated, coat the lips of the seal with grease. Next, clean up the axle flange surface and replace the O- ring. If all you needed to replace was the oil seal, you can now reassemble everything. Replacing the wheel bearing and outer seal is the more difficult part. The first step is to remove the snap ring. A pair of heavy- duty . SST's are. generally pretty expensive, however if you can cut and weld steel, this one can be made fairly easily. You can. fabricate one from scratch from some flat bar and a tube, or an even easier way is to make one out of an old axle housing. I did. The SST bolts to the bearing retainer/brake backing plate assembly using the original studs and nuts and then the whole thing is placed in the press. A few pumps later, the. It is a good idea to place a block of wood or something under the axle to prevent damage to the. Now the SST can be removed from the backing plate, and the bearing can be tapped out of. Many people do not have access to a press or the means to build a SST, so there is also the . This method can also be a little faster than using a press. You basically hold the assembly by the backing plate with the axle shaft pointing down (brake drum removed), raise it above your head, and slam the end of the axle shaft down on. You. should leave all the brake parts assembled to the backing plate so that their weight is what is hammering. The more. weight on the backing plate, the easier the bearing will come off. When using this method, be sure to wear some thick or padded gloves to protect your hands from the shock. I like to use Masonite since it is hard and dense enough to not absorb too much of the hammering force, but still soft enough to prevent mushrooming the end of the axle shaft. If you mushroom the shaft. Another way to get the retainer off is the way some factory service manuals show to do. You then still have to press or. If you use this method, you have to be very careful not to nick the axle shaft. A nick on the axle shaft causes what engineers call a . The heat from the torch can. It is also very difficult to keep from nicking the axle shaft with the torch. For these reasons. Outer Seal Replacement and Axle Shaft Reassembly. Now that everything is apart, we can finally access the outer. You should be able to remove and install this seal by. To begin. reassembly, place the backing plate onto the axle shaft, then the new wheel bearing, and. Some bearings come with a new retainer, however mine. I just re- used the old one. You can use a press to push the bearing and retainer. You just need something big enough to fit over the. I prefer to use a small piece of this material to hold against the. It is a good idea to place the axle flange on top of a vise or in a wheel laying. Pound the. bearing and retainer until they are fully seated and then install the snap ring. Take. the axle shaft and brake assembly and carefully guide the axle back into the. To get the axle all the. Install the 4 nuts on the inside of the backing plate and torque them to. If your brakes were contaminated with gear oil, clean them thoroughly. Apply new. grease to the brake adjuster and contact points between the brake shoes and. Also be sure to clean the brake drum before installing it. Reinstall the emergency brake cable. Bleed the. brakes, check the differential oil level, and the repair is complete.
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