What to know about the Axle Shaft Seal:
The front axle shaft seal is what stops the fluid in your differential from leaking out all over the axle. The differential delivers engine power from your transmission to the wheels, and lets your wheels to move. Accordingly, it needs to be greased, as does your axle. The front axle shaft seal mounts into the axle shaft tube or the differential case depending on design, and prevents the internal fluid from leaking out. If the front axle shaft seal becomes compromised, transmission fluid will leak and possibly damage the transmission or differential.
Facts to Note:
It is important to fix an axle shaft seal as soon as conceivable as the fluid can damage brake parts.
Fluid leaks can cause problems not just with the adjacent component – they can compound and affect other parts in your car.
How to Fix:
The vehicle is placed on jack stands and the four tires are taken out. The front and rear brake calipers and brackets are detached to access the axle.
The front axle is removed to access the defective front axle seal. The seal is detached and changed with a new seal.
The rear axle is removed to access the faulty rear axle seal. The seal is detached and changed with a new seal and a new differential gasket. The axles are then refilled.
The tires are reinstalled and the vehicle is removed from jack stands. Brakes are pumped up and set for operation.
The vehicle is road tested to make sureof proper operation of all the components that have been worked on.
The front axle shaft seal does not need maintenance, though it can fail unexpectedly. If there is a problem with your front axle shaft seal or any other part of your drive train, have it identified and corrected by one of your expert mechanics.
Common symptoms indicating you may need to change the Axle Shaft Seal:
Fluid leaks noticed near the front wheels
The transmission or differential fluid is low
Importance of this service:
Never neglect any type of fluid leak. If the front axle shaft seal is compromised, you could end up leaking transmission fluid, and at some point your transmission will seize up. You’ll incur costly repairs or have to change the transmission entirely. A small leak can be watched closely and managed, but if you’re losing a lot of fluid, get the front axle shaft seal changed as soon as you can.