Is it worth replacing strut mounts?
Yes. Replacing worn or damaged strut mounts is usually worth doing, especially if you are already replacing the shocks or struts or you notice clunks, vibration, or changes in steering. Proper mounts support ride quality and steering precision, and neglect can lead to further suspension damage or tire wear.
What strut mounts do and why they wear
Strut mounts connect the suspension strut to the vehicle body and, in many designs, include a bearing that allows the strut to rotate with steering. They cushion impacts, reduce noise, and maintain alignment. Over time, mounts can deteriorate from heat, oil leaks, road conditions, corrosion, and heavy usage. The bearing can wear, bushings can crack, and the mounting surface can deform, all of which degrade ride and steering feel. Lifespan varies widely by vehicle, driving conditions, and maintenance, but many mounts show wear around 60,000–100,000 miles in typical use.
Signs you may need replacement
Watch for these symptoms that point to worn or failed mounts:
- Clunking, banging, or knocking noises when going over bumps or potholes.
- Increased vibration or a harsher ride, especially through the steering wheel or front end.
- Squeaks or creaks when turning or driving over dips and uneven pavement.
- Changed steering feel, such as looseness, wandering, or a heavier effort to steer.
- Uneven tire wear or slight misalignment due to shifting suspension geometry.
- Visible damage around the mount area or signs of leaking fluid near the strut or top mount.
If you notice any of these issues, have a professional inspect the suspension to confirm whether the mounts, shocks, or struts need replacement and to rule out other causes.
Costs, timing, and what to replace
Understanding costs and timing helps you plan a repair strategy:
- Parts cost: Strut mounts with bearings generally range from about 20 to 150–200 USD per corner, depending on vehicle make/model and whether you choose OEM or aftermarket quality.
- Labor: Expect roughly 1–3 hours per corner at a shop, so 2–6 hours total for both sides, depending on access and the vehicle.
- Replacement strategy: If you’re replacing the struts or shocks, it is common to replace the mounts at the same time to ensure proper seating, alignment, and noise isolation. Some mounts are integrated with the strut assembly, while others are separate parts; confirm with your technician.
In many vehicles, replacing the struts or shocks provides an opportunity to install new mounts and bearings as part of a single service. Doing so can save on labor in the long run and help ensure the suspension remains properly aligned and quiet.
When to replace versus postpone
As part of a strut/shock replacement
If your struts are already being replaced for wear or performance reasons, installing new mounts at the same time is usually sensible. It can prevent duplcated labor costs and reduces the risk of knocking or vibration returning shortly after the repair.
On older or high-mileage vehicles
Evaluate the overall condition: if the mount bearing shows play, cracking, or noise, replacement is prudent. If everything feels tight and noise-free and the vehicle isn’t due for other suspension work, you might delay—yet plan to revisit during the next major service or when signs arise.
Maintenance tips to extend life
These practices can help extend mount life and keep the suspension healthy:
- Inspect for leaks around strut seals and replace leaking components promptly, as oil exposure can degrade mounts.
- Avoid aggressive driving over rough surfaces when possible; gentler driving reduces peak loads on the suspension.
- Have alignment checked after any suspension work to prevent uneven tire wear and steering drift.
- Choose quality parts appropriate for your vehicle—OEM or trusted aftermarket options typically offer better longevity than low-cost alternatives.
Regular inspection and timely replacement when wear is detected help preserve steering feel and tire life.
Summary
Replacing strut mounts is typically worth it when wear or damage is evident, or when you’re already replacing the struts. Doing mounts and bearings together with struts helps maintain proper alignment, ride quality, and steering response, while potentially avoiding repeat labor and noise issues later. For a precise plan, consult a qualified technician who can assess your vehicle’s specific model and driving conditions.
How long do strut mounts typically last?
Strut mounts typically last between 50,000 and 100,000 miles, similar to the struts themselves. However, their actual lifespan is significantly affected by driving conditions, vehicle use, and maintenance, with some lasting longer or failing sooner due to factors like hard braking, potholes, accidents, and environmental corrosion.
Factors influencing strut mount lifespan
- Driving conditions: Rough roads, potholes, and hard driving can wear them out faster.
- Vehicle use: Vehicles that are driven frequently or in harsh climates may experience a shorter lifespan.
- Impacts: Minor accidents can damage strut mounts and cause them to fail prematurely.
- Environmental factors: Exposure to salt, water, and humidity can lead to corrosion and premature failure.
- Maintenance: Regular inspection is recommended, and replacing strut mounts at the same time as the struts is a good practice.
When to replace them
- When replacing struts: It's a good idea to replace the strut mounts at the same time, as they wear out at a similar rate.
- During any major suspension repair: Have them inspected and replaced if needed.
- If you notice symptoms: Listen for noises like clunking or rattling, or feel a change in steering, which can indicate a worn strut mount.
How to extend their life
- Regular inspections: Have a professional inspect the mounts during routine service.
- Avoid aggressive driving: Drive smoothly and avoid hitting potholes when possible.
- Replace in pairs: If one fails, replace both mounts on that axle to ensure even performance.
What are the symptoms of a bad strut mount?
Common symptoms of strut mount failure include unusual noises like clunking or squeaking, especially when turning or driving over bumps, and excessive vibration in the cabin or steering wheel. You may also experience poor handling, uneven tire wear, or a steering wheel that pulls to one side or doesn't return to center properly.
Noises
- Clunking, knocking, or creaking: Often heard when hitting bumps, potholes, or during slow turns.
- Squeaking or grinding: May occur when turning the steering wheel, particularly at a stop.
- Clicking or snapping: Can happen when the mount's bearing gets stuck and then suddenly releases.
Handling and steering
- Steering wheel problems: The steering wheel may feel stiff, difficult to turn, or fail to return to center after a turn.
- Poor handling: You might experience more body roll when cornering or a general feeling of instability.
- Increased braking distance: A failing strut mount can lead to longer stopping distances.
Vibration
- Excessive vibration: You may feel more shaking in the steering wheel or throughout the car, especially at highway speeds.
Tire wear and alignment
- Uneven tire wear: A bad strut mount can affect wheel alignment, leading to uneven wear on your tires.
Visual inspection
- Visible damage: While difficult to see under normal circumstances, look for signs of a cracked or separated rubber component in the mount itself.
Can you drive with bad strut mounts?
Short answer: Yes -- driving with worn struts (shock absorbers/strut assemblies) and failing wheel bearings is unsafe and accelerates damage. Both affect vehicle control, braking, tire wear and can lead to sudden mechanical failure.
Should you replace strut mounts?
Yes, strut mounts need to be replaced, especially when replacing struts, as they are a normal wear-and-tear item that can cause issues like noise, poor steering, and premature tire wear. It is recommended to replace them in pairs with struts to save on labor costs and ensure even performance.
When to replace strut mounts
- When replacing struts or coil springs: Because the strut assembly must be disassembled to replace the mount, it is far more cost-effective to replace the mounts at the same time.
- Every 50,000 to 75,000 miles: This is a good general guideline, though it depends on driving conditions and the quality of the original mounts.
- When you notice these symptoms:
- Clunking or knocking noises, especially over bumps or when turning
- Vibration through the steering wheel or chassis
- Stiff, loose, or noisy steering
- Problems with tire alignment or uneven tire wear
- Poor handling or a feeling of looseness in the front end
Why replacing them is important
- Saves money: Replacing worn components at the same time prevents you from paying for the same labor multiple times down the road.
- Improves safety: A failing strut mount can negatively affect your vehicle's alignment, steering response, and overall handling.
- Reduces wear and tear: Worn mounts can cause other parts of the suspension and steering system to wear out faster.
- Increases comfort: Replacing worn components like mounts, insulators, and bushings can significantly reduce noise, vibration, and harshness (NVH) for a more pleasant ride.
