If one of your struts is worn out, you may wonder whether replacing struts means replacing all two or four.
The short answer is no; you usually don’t need to replace all two or four struts at once. However, you should replace struts in pairs on the same axle.
Is it Best to Replace Both Struts at the Same Time?
Yes. If your vehicle needs a new front strut, it’s generally best to replace both front struts. The same applies to the rear axle if your vehicle uses rear struts.
So, can I replace just one strut? Technically, a single strut can sometimes be installed, but that usually isn’t the recommended repair.
Monroe recommends replacing shocks and struts in pairs because installing a new unit opposite a worn one can result in different damping performance from one side of the vehicle to the other. Source: Monroe
That difference matters because struts aren’t simply there to make your ride comfortable. They’re part of the suspension system and affect steering, handling, braking, tire contact, and wheel alignment.
Should You Replace All 4 Struts at Once?
Not necessarily. The better rule is to replace struts in pairs across the same axle.
For example, if both front struts are worn but the rear ride-control components are still performing properly, you may only need to replace the two front units. There isn’t a reason to automatically replace good rear components simply because the front struts have reached the end of their useful life.
It’s also important to know that not every vehicle has four struts. Many modern passenger vehicles use struts in front and conventional shock absorbers in the rear. Other suspension designs may use shocks or struts at all four corners.
A professional inspection at a car repair shop can determine which components your particular vehicle uses and whether the front, rear, or all four corners need attention.
If all four ride-control units are worn, leaking, damaged, or performing poorly, replacing all four may make sense. The decision should be based on their actual condition rather than automatically assuming four new units are required.
Why Is It Better to Replace Struts in Pairs?
- Handling and vehicle stability: A new strut can control suspension movement differently than an old, worn unit.
- Even tire wear: Worn struts can make it harder for your tires to maintain consistent contact with the road. You might notice cupping, uneven tread wear, excessive bouncing, or a vehicle that doesn’t feel as planted over bumps.
- Alignment labor: Replacing struts can affect wheel alignment.
- Replacing both worn struts on an axle together can also avoid doing similar suspension and alignment work again shortly afterward if the opposite strut fails.
- Shared lifespan: Struts on the same axle have typically traveled the same roads, covered the same mileage, and experienced similar bumps and potholes. If one is worn because of normal age and mileage, the other may not be far behind.
Trust Next Auto Care for Strut Replacement in Highlands Ranch
Worn struts can affect more than ride comfort. They can change how your vehicle handles, responds during braking, and keeps its tires planted on the road.
The key is replacing what’s actually worn, not automatically replacing every shock or strut on the vehicle.
Next Auto Care provides professional suspension inspections and strut replacement for car owners in Highlands Ranch, Colorado. Our expert suspension technicians check the condition of your suspension components and give you a clear, written estimate before any work begins.
Whether you need a pair of front struts, rear suspension repairs, or service at all four corners, we’ll recommend only what your vehicle needs.
Contact Next Auto Care today to schedule an inspection and keep your vehicle handling safely and predictably on Colorado roads.
Contact Next Auto Care at 303-771-6398 or reach our Facebook page.
Frequently Asked Questions
Should you replace struts in pairs?
Yes. It’s generally best to replace both struts on the same axle so the new and worn units don’t have different damping performance.
Can you replace just one strut?
A single strut can sometimes be installed, but replacing both on the same axle is generally recommended.
Should you replace all four struts at once?
Not necessarily. Replace the components that need attention. If only one axle’s struts are worn, the other axle’s components may not need replacement.
Do all cars have four struts?
No. Some vehicles have front struts and rear shocks, and suspension designs vary. An inspection can identify which components your vehicle uses.
What are signs of worn struts?
Excessive bouncing, cupped or uneven tire wear, or a vehicle that feels less planted over bumps can indicate worn struts.
Does strut replacement affect wheel alignment?
Replacing struts can affect wheel alignment. Replacing a worn pair together may also help avoid repeating similar suspension and alignment work soon afterward.
