Yes. You can replace rear struts, but in most cars you’ll install a complete strut assembly (which includes the spring) rather than swapping only a damping component. You should also assess related parts and plan for an alignment after installation.
Understanding rear struts
Rear struts are a central part of a vehicle’s suspension, often combining a shock absorber with a coil spring and a mounting point. The exact design varies by vehicle: some cars use a MacPherson-style strut with a integrated spring, while others rely on separate shocks plus springs. Replacing rear struts can improve ride quality, reduce bounce, and restore handling, but the replacement approach depends on the car’s design and the extent of wear.
Different designs and what that means for replacement
In many modern cars with MacPherson-style rear suspensions, the strut and spring are sold as a single unit, so replacement means installing a new strut assembly. On other vehicles that use separate rear shocks, you can replace just the shock absorber. Replacing only a dampening cartridge inside an integrated strut is not typically done outside of factory repair, and usually requires replacing the whole assembly. Always verify your vehicle’s design in the owner's manual or with a parts supplier before buying parts.
Can you replace rear struts by themselves?
Yes, but with important caveats. If your car uses a full strut assembly (common in many modern vehicles), you’ll typically replace the entire unit rather than a single component. If your vehicle uses independent rear shocks, you can replace the shocks on their own. If you have an integrated strut with a coil spring, replacement generally means swapping the whole assembly. Additionally, most setups benefit from replacing both sides to maintain balanced handling, and an alignment is usually required after replacement.
DIY vs professional installation
Replacing rear struts can be a doable DIY project for experienced enthusiasts, but it involves lifting the car, safely supporting it, and handling high-load components. If you’re replacing a complete strut assembly on a MacPherson setup, you may avoid a spring compressor, but you must still manage top mounts and fasteners correctly. For vehicles with coil springs, professional installation is often safer due to the risk of spring release. An alignment check after replacement is essential to ensure proper steering and tire wear.
Before diving into the practical steps, here's what to know about signs you may need to replace rear struts.
Common signs that rear struts may be failing:
- Excessive body roll or sway when turning
- Bottoming out or a harsh ride over potholes
- Oil leakage or visible damage around the strut
- Clunks, rattles, or knocking noises when going over bumps
- Diminished ride quality with increased bounce
- Uneven tire wear or alignment drift
Not all ride issues point to struts, but persistent symptoms typically warrant a professional inspection to determine whether the struts, springs, mounts, or other components are at fault.
Replacement options and considerations
When you replace rear suspension components, you’ll choose based on design, cost, and desired outcomes. Here are the common options and what they mean for your vehicle.
- Replace just the shocks/dampers (if your car uses separate rear shocks)
- Replace the entire rear strut assembly (typical for vehicles with integrated struts and springs)
- Replace in pairs (both sides) to maintain balanced handling
- Factor in a wheel alignment after replacement
- Inspect related parts (strut mounts, springs, control arms, boots, sway bar links) and replace as needed
After weighing these options, decide whether a DIY approach fits your skill level and whether professional installation is advisable for safety and long-term reliability. Alignment is a key step after any suspension work to protect tires and ensure predictable handling.
What to expect in terms of cost and time
Costs vary by vehicle and region, but here is a general range to plan around. The numbers are approximate and can differ based on parts quality and labor rates.
- Parts: A rear strut assembly typically costs around $100–$350 per unit; shocks alone are usually cheaper, roughly $50–$150 each. Prices depend on vehicle make, model, and whether you buy OEM or aftermarket parts.
- Labor: Shop labor for rear strut or assembly replacement generally runs about $150–$350 per axle, depending on the vehicle and local rates.
- Additional costs: Alignment after installation can run about $75–$200, and if other components (springs, mounts, bushings) are found worn, those add to the total.
In some cases, replacing both rear struts on a two-wheel-drive car can be completed in a few hours by a skilled DIYer, while others may take a full day at a shop, especially if an alignment or further component work is required.
Summary
Replacing rear struts is a common maintenance task, but the exact approach depends on your vehicle’s suspension design. In many cars, you’ll replace the entire strut assembly rather than a single damper, and you should plan for an alignment after installation. If you’re unsure about your car’s design or your own mechanical skills, consult a qualified technician. Replacing in pairs and inspecting related components can help ensure balanced handling and a longer-lasting, safer ride.
How expensive is it to replace rear struts?
Replacing shocks and struts is essential for maintaining car safety and handling, with costs ranging from $500 to $2,500 for a pair. Labor expenses for replacement can vary from $100 to $300 per assembly.
Should you replace both rear struts if only one is bad?
Maintain Consistent Performance – Replacing both shocks/struts on an axle at the same time ensures that both sides deliver the same consistent performance. If you only replace one side of an axle, it can create uneven damping characteristics.
Can struts make a popping noise?
A bad strut mount can produce popping or clicking noises during vehicle movement. This often occurs in sudden stops or when accelerating. It's not just an annoyance; it reflects deeper issues within the strut assembly that require immediate attention.
Can I drive with a bad rear strut?
Can I drive with a damaged strut? No. It needs to be repaired as soon as possible. A strut works by absorbing the bounce of your car driving over bumps in the road.