Everything You Need to Know About Replacing Your Shocks or Struts

Everything You Need to Know About Replacing Your Shocks or Struts

When you’re driving down the road, does it seem like you can feel every little flaw in the road?  Do you dread potholes – or speed bumps – because you know you’re going to have a rough ride?

If so, you’re probably having trouble with your shocks or struts!  Shocks and struts are two different components, but they both have the same basic function: smoothing out your ride.  These spring-loaded systems absorb the up-and-down motion of driving over rough surfaces so that you float on the road without bouncing around in your seat.

So, in this article, we wanted to talk about the differences between shocks and struts, and when shocks and struts replacement should happen.  Let’s take a look…

I. Shocks vs Struts – What’s The Difference?

Sometimes you’ll see people using “shock” and “strut” interchangeably, as though they’re the same component.  However, they really aren’t.  They serve the same purpose, which is why they’re sometimes confused with each other.

A shock absorber – or just shock – is a component that attaches to the large spring in your suspension system.  When the spring compresses, it absorbs and holds kinetic energy.  The shock absorber takes that kinetic energy and dissipates it so that the spring’s motion doesn’t transfer into the passenger compartment.  This allows your suspension system to bounce up and down over rough terrain without turning into a bumpy ride.

A strut, on the other hand, is a major structural component of your chassis.  It incorporates the shock absorber and the spring, as well as helps to hold the car together.  

Basically, a strut will always include a shock absorber, but a shock absorber doesn’t necessarily have to be part of a strut.

II. Does Your Car Use Shocks Or Struts?

Every car is built differently and may use either shocks or struts on an axle.  As a rule of thumb, most modern cars have struts in front, and shocks in the back.

However, this isn’t necessarily true for all cars.  Some, particularly those built for “heavy-duty” or off-road use, may have struts on all four wheels for extra stability and reliability.  On the other hand, it’s rare for a modern vehicle to only use shocks and springs, although you may see this configuration on older or classic cars.

If in doubt, consult your owner’s manual.  It’ll clearly lay out how your vehicle’s suspension system is built.  Any ASE-certified auto technician can also quickly look under the car and tell you what’s being used.

III.  Signs You Need Shocks And Struts Replacement

So, when is it time to replace your shocks or struts?  Here are a few key signs.

1 – You’ve gone 100,000 miles without a replacement

A set of shocks or struts can typically last anywhere between 50,000-100,000 miles before they need to be replaced.  Their exact lifespan will mostly depend on how aggressively you drive, as well as how often you drive on bumpy terrain.  

However, if it’s been 100,000+ miles, it’s time for a new suspension.  If it hasn’t broken down yet, it will soon.

2 – A rough ride

The most obvious physical sign that you have issues with your shocks or struts is that your ride becomes increasingly rough.  If you find yourself thinking, “Didn’t my car used to drive more smoothly?” you aren’t imagining things; it’s time for shocks and struts replacement.

3 – Hydraulic fluid leaks

As shocks or struts break down, they’ll have difficulty holding onto the hydraulic fluid which is necessary for your suspension system to work correctly.  You’ll be able to see leaks dripping around your wheels.  If you aren’t sure, try wiping down the shocks/struts, drive for a few minutes, and check again for a leak.

4 – Braking and turning problems

When you hit the brakes, your car should remain stable.  If your nose suddenly dips if you hit the brakes hard, or if your car sways as you take a tight turn, that’s a sign your suspension is failing – and it can be dangerous!  Go to a shop for repair ASAP.

5 – Uneven tread wear

Your tire’s tread will wear down over time, but the wear should be even.  If there’s a wavy pattern of more and less wear around the tire’s surface, that suggests suspension problems.

IV. Do You Replace Both Shocks & Struts At the Same Time?

There’s a reason that shocks and struts are always sold as a pair.  You should always replace both parts on an axle when it’s time for repairs.  Otherwise, your car will ride unevenly, and you’ll have tire balance problems as well.

Don’t go cheap here.  Trying to only replace one shock/strut isn’t worth it and can cause dangerous mechanical problems.

Contact us for shocks and struts replacement, and more!

When you need shocks and struts replacement in Briarcliff Manor or Shrub Oak, come to Fred’s Auto Repair.  Since 1974, we’ve provided the best car and truck service in the area, and we’re trusted by the community.

Click here to schedule an appointment or call (914) 762-1131 today!