How to Know When to Replace Your Shocks
Shocks and struts play a critical role in both ride quality and overall vehicle maintenance. As shock absorbers wear out over time, they become less effective at absorbing impacts, leading to increased stress on other vehicle components. This can result in higher maintenance costs for parts like tie rods, CV axles, steering arms, and ball joints, which all experience greater wear when supported by worn shocks.
Signs Your Shocks or Struts May Be Worn or Failing
- Oil Leaks: Check for oil leaking from the shock shaft or rod onto the body of the shock or strut. If the shock is too dirty to inspect, clean it with a rag and check again after 50-100 miles for any moisture or liquid buildup. While some manufacturers claim a small amount of oil is normal and doesn’t affect dampening, excessive leakage is a sign of trouble.
- Excessive Bouncing: Push down on the front or rear bumper of the vehicle. If it continues to bounce after you stop, the vehicle is likely riding solely on the springs, indicating that the shocks are no longer providing proper dampening.
- Nose Dive During Braking: When braking hard, does the front of your vehicle dive and continue to rock back and forth? This is another indicator of failing shocks.
- Damaged Bushings or Mounts: Look for cracked or broken bushings or mounts, especially on the top stem pack of the rear shocks, which can deteriorate faster in harsh conditions.
While manufacturers often recommend inspecting your shocks every 50,000 miles, we suggest shortening this interval to 20,000 miles for OEM or budget shocks. Read our post on why cheap shocks can end up costing more in the long run.
When to Upgrade Your Shocks
If you frequently go off-roading, haul heavy loads, or plan to level your vehicle or add larger wheels, consider upgrading your shocks. This will help handle the extra load and reduce labor costs over time.
Key Questions to Ask Yourself
Before deciding on new shocks, consider how you typically use your vehicle:
- Do you mainly use it for commuting or normal highway driving?
- Do you drive off-road, on trails, or in sand dunes?
- Are you regularly carrying heavy loads for work, camping, or sports equipment?
- Do you have rooftop tents, heavy bumpers, winches, or overlanding gear?
These factors can influence what type of suspension setup is best for your vehicle. While factory replacement shocks may seem like a quick fix, they may not be the best option if you anticipate heavy use in the future.
Components at Risk from Weak Shocks
Worn shocks can cause excessive strain on several important parts, including:
- Tie rods
- Steering arms and stabilizers
- Upper ball joints
- CV axles and boots
- Tires
- U-bolts
- Leaf springs
- Coil springs
All these components suffer when your shocks can no longer absorb the impact of rough terrain or road imperfections.
By staying proactive and replacing or upgrading your shocks in a timely manner, you can extend the life of other key parts and maintain a smoother ride.