Does a wheel bearing need a seal?
The bearings needs to be constantly lubricated as the wheel turns. The wheel seal keeps the grease inside the wheel bearing assembly. The wheel seal keeps all water, dirt, and other impurities out of the wheel bearing assembly.
Which way do wheel bearing seals face?
A seal must always be installed so that the sealing lip is facing the fluid to be sealed. This is because the lip is made so that pressure applied to it from the “wet” side of the seal will tend to increase the pressure the lip applies to the shaft.
How do you replace rear wheel bearings in Toyota?
Place the new seal into the axle end, and carefully drive it in. For this seal, I found the front hub 2 1/8″ socket with a towel on the end was the perfect size to drive the new seal. 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, or use gasket-maker instead.
When to replace rear wheel bearings and seals?
When the stock breather is unable to vent the diff, the internal pressure will find relief somewhere in the system: usually at the axle seal. So, if you have a leaking seal, be sure to check the breather for proper operation. Or better yet, replace it with an extended breather. The brake assembly and axle/backing plate prior to removal.
How do you replace a Toyota 4Runner brake cable?
Once the tire is off the vehicle, remove the retaining pin from the emergency brake lever mechanism at the backing plate and move the cable out of the way. 1990 and later 4runners will need to remove the brake drum, unhook the brake cable from the lever inside, unbolt the cable sleeve from the backing plate, and slide the cable out.
How do you replace a rear axle seal?
The brake assembly and axle/backing plate prior to removal. The e-brake cable is off, and the hydraulic line is “gravity bleeding”. To replace a rear axle seal or bearing, the rear axle should be placed securely on jackstands, and the tire removed.