In most passenger cars, replacing both rear struts typically takes about 2–4 hours of shop labor, with total time rising to roughly 3–6 hours when you include potential alignment and unforeseen complications. If you’re only replacing one side or doing the work yourself, expect different timelines.
The actual duration depends on the vehicle’s suspension design, whether you replace complete strut assemblies or just the damping components, and how accessible the fasteners are. This article outlines typical time ranges and the factors that influence them to help you plan.
What affects the time to replace rear struts
Time varies based on vehicle design, the replacement method, and the workspace. The following scenarios cover common setups and their typical labor windows.
Vehicle design differences
Some cars use rear strut assemblies with coil springs, while others use separate shocks with springs or more modular rear suspensions. Access to mounting points, the presence of rust, and the layout of the trunk or hatch area can significantly change how long the job takes.
Alignment and safety considerations
Replacing rear struts can alter vehicle alignment and handling. If the shop performs an alignment after installation, that adds time to the total job. DIYers should be aware that proper torque and safety procedures are essential for a reliable repair.
Before diving into the time estimates, note that the following ranges are approximate and can vary by model, tool availability, and technician experience.
- Two rear strut assemblies replaced on a typical sedan/SUV, using pre-assembled units (no unusual rust): DIY about 4–6 hours; shop about 2–4 hours.
- Single-side rear strut replacement (one side only): DIY about 2–4 hours; shop about 2–3 hours.
- Rear suspension with coil springs and struts that require disassembly and a spring compressor: DIY about 6–8 hours per side; shop about 3–5 hours per side.
- Post-replacement alignment: If done by a shop, add about 0.5–1.5 hours to the total time; DIY alignment is generally not recommended for safety and accuracy.
Conclusion: Most standard rear strut replacements on a typical car fall within the 2–6 hour range overall, with longer durations possible if there’s rust, difficult access, or elaborate coil-spring work.
DIY vs. professional timing and tips
Labor times can differ substantially between DIY projects and professional service. Pros typically complete the job faster due to specialized tools, torque accuracy, and experience, while DIYers should budget extra time for tool setup, safety checks, and potential hiccups.
Summary
Replacing rear struts generally takes about 2–4 hours of shop labor for a standard pair, with total time around 3–6 hours including alignment and potential complications. DIY projects can take longer, often 4–6 hours or more, depending on vehicle design, stiffness of fasteners, and whether spring compression is required. Always factor in safety considerations and confirm alignment needs with your installer or technician.