Shocks and struts… the two terms are used together so often, you might think they’re interchangeable! However, each of them plays different (and vital) roles in the suspension system and overall function of your vehicle.

What’s the Difference Between Shocks and Struts?

Shock absorbers, commonly referred to as shocks, manage the impact and rebound of your vehicle’s springs and suspension as you drive. Inside each shock absorber is a piston, a coil, and hydraulic fluid; when your wheel hits a bump, the piston pushes against the hydraulic fluid and slows down the coil’s movement. This keeps your tires in constant contact with the road and softens the jolts and vibrations you’d feel while driving over rough terrain or uneven roads. Additionally, shocks help improve steering and stability, ultimately enhancing both the safety and comfort of your ride.

Struts have two main functions. First, they work very similarly to shocks by controlling the movement of the springs and suspension. Just like shocks, struts provide resistance to handle the bouncing of the suspension and can adjust how much resistance they provide depending on how fast the suspension moves.

Secondly, they provide structural support for the vehicle’s suspension by holding up the springs and keeping the tires in the right position. Struts also handle a lot of the sideways force on the suspension. In addition to affecting how comfortable the ride is and how well the car handles, they also affect braking, steering, wheel alignment, and the wear and tear on other suspension parts. Since they are weight-bearing components, they tend to be designed stronger than shocks.

Do All Vehicles Have Shocks and Struts?

Shocks and struts work similarly, but they’re different systems. Many vehicles have one or the other, but some vehicles have both. In vehicles that use both systems, you’ll find shocks on one axle and struts on the other. Some models are designed to have springs and shocks in place of struts—so it really depends on your vehicle!

There are a few ways you can find out which components your vehicle is equipped with. First, you can check your owner’s manual. If you don’t have your owner’s manual anymore or are having trouble finding the information about your suspension system, you can look underneath your vehicle.

If you have shocks, they’re usually mounted vertically behind the tires and will look kind of like a bicycle pump. Struts will have springs surrounding the center “shock” cartridge. Check the front and rear wheels to see if you have both shocks and struts.

If you’re still not sure which system your vehicle uses, we’re happy to help! We can look up your make and model and tell you exactly what your car, truck, or SUV is equipped with, as well as recommended service intervals.

Keep Your Vehicle Safe with Maintenance and Repairs

Shocks and struts can wear out over time, especially if you frequently drive on rough roads or go off-roading. Manufacturer’s recommendations can vary, but it’s generally recommended to have your suspension system inspected around 50,000 miles; if you notice any of the following signs, they should be inspected right away:

  • Your vehicle nosedives when braking
  • The end of your car dips while accelerating
  • Noticeable swaying when switching lanes or going around turns
  • Excessive bouncing after hitting a bump or dip in the road
  • Uneven tire wear, especially cupping or scalloping (the edges look kind of like ocean waves)
  • Noisy steering or vibrations in the steering wheel
  • Clunking or knocking sounds coming from near the axles
  • Fluid leaking from your shocks or struts
  • Lack of control at high speeds

Worn-out or damaged shocks and struts aren’t just bad news for your tires and suspension systems—they’re also dangerous.

The suspension system is responsible for maintaining stability and control while you’re driving; when any of the parts aren’t working as they should, it puts your safety at risk. Your car may not handle turns or sudden stops as it should, or uneven tire wear could reduce contact with the road. In addition to being less responsive and safe, suspension issues can also significantly reduce the life of your tires and lead to more frequent replacements.

When it comes to safety, it’s always best to err on the side of caution. Whether you’ve been experiencing any of the above signs or it’s time to schedule a suspension inspection, Express Auto/RV Care Center is here to help! Third-generation and family-owned since 1998, we offer same-day service and repairs for most makes and models.

With a team of ASE-certified technicians and a 3-year/36,000-mile warranty and satisfaction guarantee, your vehicle is in excellent hands at our Better Business Bureau-Accredited shop! For peace of mind and high-quality auto care, contact us today at (928) 305-0767 or request an appointment online.

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