How to Change Rear Wheel Bearings with Drum Brakes
Changing rear wheel bearings can seem like a daunting task, especially if you're working with drum brakes. However, with the right tools and careful steps, you can successfully complete the job yourself. This article will guide you through the process of changing rear wheel bearings on a vehicle equipped with drum brakes.
Tools and Materials Needed
Before getting started, make sure you have the following tools and materials
- Jack and jack stands - Lug wrench - Socket set - Torque wrench - Screwdrivers (flathead and Phillips) - Hammer - Bearing puller or slide hammer - Wheel bearing grease - Replacement wheel bearings - Brake cleaner - Safety glasses and gloves
Step 1 Preparation
Begin by ensuring your vehicle is parked on a flat surface and that the engine is turned off. Engage the parking brake for safety. Using a lug wrench, loosen the lug nuts on the rear wheel slightly, but do not remove them yet.
Step 2 Lifting the Vehicle
Position the jack under the vehicle manufacturer’s recommended lifting point and raise the rear end off the ground. Once lifted, secure the vehicle with jack stands to ensure it remains stable while you work. Now, remove the lug nuts completely and take off the wheel.
Step 3 Removing the Brake Drum
With the wheel removed, you will expose the brake drum. Before removing it, check for any retaining screws that may need to be unscrewed. In some cases, you may need to tap the drum gently with a hammer if it’s stuck due to rust or debris. Once free, slide the drum off the wheel hub.
Step 4 Inspecting the Components
Before proceeding, inspect the drum, shoes, and other components for wear
. If brake shoes are worn, it’s wise to replace them at this time. Also, look for any signs of damage to the backing plate or brake hardware.Step 5 Removing the Axle
Next, locate the axle nut in the center of the hub. Use a socket set to remove the axle nut. It may be necessary to use a breaker bar for additional leverage. Once this is removed, you may need to pull out the axle. If it’s stuck, you can gently tap it free with a hammer, being careful not to damage any threads.
Step 6 Extracting the Old Bearings
Now you can access the wheel bearings. Depending on your vehicle, you might have to remove the bearing retainer. Use a bearing puller or slide hammer to extract the old bearings from the hub. If you're experiencing difficulty, ensure you're applying even pressure on the puller and not damaging other components.
Step 7 Installing New Bearings
Clean the hub thoroughly using brake cleaner to remove any old grease, dirt, and debris. Once cleaned, apply a generous amount of wheel bearing grease to the new bearings before installation. Carefully press the new bearings into place, ensuring they fit snugly.
Step 8 Reassembly
Reinstall the bearing retainer if your vehicle is equipped with one. Slide the axle back into the hub assembly, and then tighten the axle nut to the manufacturer’s specifications using a torque wrench. Replace the brake drum by sliding it back onto the hub, followed by the wheel.
Step 9 Lowering the Vehicle
With everything reassembled, you can now lower the vehicle by removing the jack stands and carefully lowering it with the jack. Once it’s on the ground, replace the lug nuts and tighten them in a criss-cross pattern to ensure an even fit.
Step 10 Test Drive
Finally, take the vehicle for a short test drive to ensure everything is functioning properly. Listen for any unusual noises that could indicate improper installation. If everything feels good, you have successfully changed your rear wheel bearings!
By following these steps carefully, you can save money on labor costs and gain valuable experience working on your vehicle. Always refer to your vehicle's manual for specific instructions and torque specifications related to your model. Happy wrenching!