Hub Assemblies 101: All You Need To Know To Extend The Life Of Your Vehicle

Your hub assembly plays a crucial role in your vehicle’s performance and safety. Regular maintenance and timely replacements can keep your car running smoothly for years.

A failing hub assembly can cause steering instability, uneven tire wear, and will eventually seize completely. Below are answers to the most common questions about wheel hub assemblies, including costs, symptoms of failure, and replacement guidance.

1. How Much Does A Hub Assembly Cost?

The cost of a wheel hub assembly varies depending on the make and model of the vehicle, as well as the quality of the part. 

Economy-grade hub assemblies can start from $50 but have a limited lifespan and are not recommended for commercial or fleet vehicles. Premium hub assemblies that are OE-quality or better cost a bit more but last far longer. They are best suited for heavy-duty use, high-mileage applications, performance vehicles, fleets, and vehicles intended to be driven for many years.

GMB manufactures high-quality OE and aftermarket hub assemblies that are engineered for durability and long-lasting performance. You can find GMB’s full selection of hub assemblies here.

2. Can I Replace A Hub Assembly Myself?

Yes, if you have mechanical experience and the right tools, you can replace a hub assembly. However, the process requires: 

• A torque wrench, breaker bar, and socket set
• A hub puller (if the hub is seized onto the spindle)
• Jack stands and a hydraulic jack for safe lifting
• Knowledge of torque specifications (over-tightening or under-tightening can cause premature failure)

For most DIYers, replacing a hub assembly can take 1 to 3 hours per side. If you’re unsure, it’s best to have a professional mechanic handle the job. 

3. Where Should I Buy A Hub Assembly? 

We recommend purchasing GMB hub assemblies directly from authorized distributors, parts retailers, or automotive suppliers for the best quality and reliability. Buying a GMB product from an authorized seller ensures you get:

• OE-quality manufacturing
• A properly engineered, vehicle-specific fit
• Warranties and technical support

Find the right GMB hub assembly for your vehicle here.

4. What Are The Symptoms Of A Failing Hub Assembly?

A failing hub assembly can cause several warning signs, including:

• Grinding or roaring noises from the wheels
• Uneven tire wear or premature tire damage
• Steering instability or vibrations

If you notice any of these symptoms, it’s time to inspect your hub assembly and replace it if necessary. Read more about this topic here.

5. How Long Does A Hub Assembly Typically Last?

A high-quality GMB hub assembly can last up to 100,000 miles or longer, but several factors can influence its lifespan, including:

• Driving conditions – rough roads and potholes accelerate wear. One severe pothole hit can ruin a perfectly good hub.
• Proper installation – torque specifications matter
• Vehicle weight and usage – towing or heavy loads put more stress on bearings. Fleet vehicles and heavy-duty applications may require more frequent replacements.

6. Can I Drive With A Bad Hub Assembly?

It is not safe to drive with a failing hub assembly. A bad hub can cause many issues such as:

• Cause the wheel to loosen or detach while driving
• Lead to erratic steering or pulling to one side
• Trigger ABS failure, reducing braking effectiveness
• Cause tires to wear out prematurely

If you suspect your hub assembly is failing, replace it immediately. This article goes into more detail about the dangers of putting off wheel hub replacement. 

7. Do I Need To Replace The Hub Assembly On Both Sides At The Same Time? 

No, you do not have to replace both sides unless:

• The other hub is showing similar symptoms of failure
• The vehicle has high mileage, and both hubs have similar wear
• You want to avoid a second repair later on 

If one hub is failing due to impact damage (e.g., hitting a pothole), the other hub may still be in good condition. However, if one side has worn out due to age, the other side may not be far behind.

8. What Happens If I Don’t Replace A Failing Hub Assembly?

Ignoring a failing hub assembly can lead to severe safety risks, including: 

• A seized hub, making the vehicle undrivable
• Wheel detachment, causing a major accident
• Eventual damage to other components, such as axles, control arms, and tires

The cost of neglecting a bad hub assembly can far exceed the cost of replacing it in time.

GMB Has A High-Quality Hub Assembly For Your Vehicle

GMB is a trusted OE and aftermarket parts manufacturer with decades of experience producing high-performance hub assemblies. 

If you suspect an issue with your wheel bearing and hub assembly or need a quality replacement, check out our catalog or contact our team for expert advice!