OEM Rear Axle Shaft for 2020-2025 Buick & Chevrolet • Encore GX, Trailblazer - Left (Driver)

Buying a rear axle shaft requires careful consideration. Here's what to look for:

What to look for when buying this part:

• Ensure the part is specifically designed for your vehicle's year and model.
• Check for any signs of damage or wear on the part.
• Verify the part's dimensions and specifications match your original axle shaft.
• Read reviews and ratings from other buyers.

Quality indicators for the available options:

• Used OEM: Look for minimal rust, no visible cracks, and smooth bearing surfaces.
• Refurbished OEM: Ensure the part has been professionally restored and comes with a warranty.
• New Aftermarket: Choose a reputable brand known for quality and durability.

What's typically included with the part:

• The axle shaft itself
• Sometimes the wheel studs are included
• Seals and bearings may or may not be included (check the product description)

Replacing a rear axle shaft can range from moderately difficult to challenging.

Difficulty level and estimated time:

• Difficulty: Moderate to Advanced
• Estimated Time: 2-4 hours

Special tools needed (if any):

• Jack and jack stands
• Wheel chocks
• Socket set and wrenches
• Torque wrench
• Hammer
• Slide hammer (may be needed to remove the old axle shaft)
• Axle shaft seal installer (optional, but recommended)

Critical steps and tips:

1. Disconnect the negative battery cable.
2. Loosen the lug nuts on the wheel you're working on.
3. Raise the vehicle and secure it with jack stands.
4. Remove the wheel.
5. Disconnect the brake lines and parking brake cable (if applicable).
6. Remove the brake caliper and rotor.
7. Remove the axle shaft retaining bolts or C-clip (depending on the vehicle's design).
8. Carefully remove the old axle shaft.
9. Install the new axle shaft, ensuring it's properly seated.

Whether DIY is recommended or professional installation is better:

• DIY is possible for experienced mechanics.
• Professional installation is recommended if you're not comfortable working on brakes or suspension components.

There are several options when buying a replacement rear axle shaft:

Compare: Used OEM, Refurbished OEM, New Aftermarket

• Used OEM: Offers the best value. These are genuine factory parts that have been tested and inspected. They provide the same quality and reliability as the original part at a lower price.
• Refurbished OEM: These are factory parts that have been professionally restored with new components. They offer a good balance of quality and affordability.
• New Aftermarket: These are brand new parts manufactured by third-party companies to meet or exceed OE specifications. They can be a good option if you're looking for a new part at a competitive price.

When replacing a rear axle shaft, consider replacing or inspecting these related parts:

Parts commonly replaced or checked at the same time:

• Wheel bearings
• Axle seals
• Brake pads and rotors
• Differential fluid

Why replacing related parts prevents repeat failures:

• Worn wheel bearings can cause excessive stress on the axle shaft.
• Leaking axle seals can lead to lubrication issues and premature axle shaft failure.
• Replacing worn brake components ensures proper braking performance and reduces stress on the axle shaft.

A rear axle shaft's lifespan varies depending on several factors.

How long this part normally lasts:

• Typically lasts 75,000 to 150,000 miles or more under normal driving conditions.

Factors that affect longevity:

• Driving habits (aggressive driving shortens lifespan)
• Vehicle usage (towing or hauling heavy loads reduces lifespan)
• Road conditions (rough roads and potholes can damage the axle shaft)
• Maintenance (regular lubrication and inspections extend lifespan)

The cost of a rear axle shaft can vary depending on the type and brand.

Budget vs mid-range vs premium options:

• Used OEM: $75 - $200
• Refurbished OEM: $150 - $300
• New Aftermarket: $100 - $350

Labor cost considerations if applicable:

• Labor costs can range from $150 to $400, depending on the shop and location.

Total job cost estimates:

• Total cost (including parts and labor) can range from $225 to $750.

The 2020-2025 Buick Encore GX and Chevrolet Trailblazer share a similar platform and rear axle design.

Known issues for this vehicle's system related to this part:

• Some owners have reported premature wheel bearing failure, which can contribute to axle shaft problems.
• Check for any Technical Service Bulletins (TSBs) related to the rear axle or drivetrain.

Any TSBs or common complaints:

• It's always a good idea to check with your dealer or online resources for any relevant TSBs related to rear axle issues on these vehicles.

After installing the new rear axle shaft, it's crucial to verify proper operation.

How to confirm proper operation:

• Test drive the vehicle at various speeds.
• Check for any unusual noises or vibrations.
• Inspect the axle shaft area for leaks.

What to look/listen for to verify it's working correctly:

• Smooth and quiet operation
• No clicking or popping sounds when turning
• No vibrations or wobbling
• No gear oil leaks

Q: How do I know if my rear axle shaft is bent?
A: A bent axle shaft will usually cause a noticeable vibration, especially at higher speeds. You might also hear a grinding or rubbing noise.

Q: Can I drive with a bad rear axle shaft?
A: It's not recommended. Driving with a bad rear axle shaft can be dangerous and could lead to further damage to your vehicle.

Q: Are both rear axle shafts the same?
A: No, there's a left and a right side. This product is for the left (driver's) side.

Q: Do I need to replace the wheel bearing when I replace the axle shaft?
A: It's a good idea to inspect the wheel bearing and replace it if it shows signs of wear or damage. Since you're already in there, it can save you time and money in the long run.

Q: Will this axle shaft fit my all-wheel drive (AWD) model?
A: This axle shaft is for the rear of front-wheel drive (FWD) models. AWD models have a different rear axle setup.

OEM Part Numbers:

• Buick: 42764284, 60007211
• GM: 60004301, 60005542, 60008698

Fits Years: 2020 2021 2022 2023 2024 2025