How are Axle Shaft Bearing issues diagnosed?
If the vehicle has a sense of instability, or audible grinding or chirping from the wheel, the wheel bearing will be inspected. If there is axle play, a rough feeling when rotating the wheel, a leak from the wheel seal, or any other cause for concern, the wheel bearing and wheel seal will be replaced.
How are Axle Shaft Bearings replaced?
The servicing technician will begin by raising the vehicle, and removing the tire corresponding to the failed wheel bearing. For straight axles, replacing a wheel bearing requires the differential cover to be removed, and axles disconnected from the differential. Then, the brakes and axle must be removed. The bearing and seal are pulled, and replaced, and the axle housing can be reassembled. Afterwards, the differential will be refilled with the appropriate type of gear oil, and the vehicle can be road tested.
RepairPal Recommendations for Axle Shaft Bearing issues
When the wheel bearings are being replaced is an excellent time for the brakes to be inspected. If they require replacement, typically the cost should only rise very slightly, since the brakes are already being disassembled and reassembled.
What to look out for when dealing with Axle Shaft Bearing issues
There are several types of wheel bearing, hub, and axle systems in use, and understanding which system your vehicle uses is key to understanding your repair. The most common types are sealed hub and bearing assemblies, found on most modern vehicle, and roller bearings that are mounted inside the rear axle housing, as found in many older vehicle and heavy duty applications.
Can I replace the Axle Shaft Bearing myself?
Rear axle bearing replacement is an easy DIY project for the novice DIYer to handle, if the bearings are sealed bearing and hub assemblies. The only caveat to that is the individual must understand how to properly tighten the axle nut with a torque wrench. This is essential in maintaining a wheel bearing, and preventing the wheel from dragging, causing excess friction and heat. It is not, however, recommended for most DIYers to attempt replacement of wheel bearings on straight axle vehicle, as specialty tools are required, and the axles must be disconnected from the differential. Inexperienced or overzealous individuals may cause harm to themselves or the vehicle, or create a safety hazard while driving.
