Understanding Your Suspension
Struts vs Shocks — What's the Difference?
Struts and shocks are often confused, but they are fundamentally different components. Understanding the difference helps you get the right repair at the right price.
Struts (MacPherson)
Structural Component- 1. Combines damper + spring mount + bearing in one unit
- 2. Replaces the upper control arm — it IS the suspension
- 3. Directly affects wheel alignment angles
- 4. Must be replaced as a complete assembly or with spring compressor
- 5. Requires alignment after replacement
Cost: $250 - $500 per strut installed
Shocks (Shock Absorbers)
Standalone Damper- 1. Damper only — controls spring oscillation
- 2. Mounted separately from the spring and control arm
- 3. Does NOT affect alignment angles
- 4. Simple bolt-on replacement (top and bottom mount)
- 5. Alignment not typically needed after replacement
Cost: $150 - $350 per shock installed
| Feature | Struts | Shocks |
|---|---|---|
| Structural role | Yes — part of suspension geometry | No — only dampens |
| Includes spring mount | Yes | No |
| Affects alignment | Yes | No |
| Replacement complexity | Higher — spring compressor needed (or complete assembly) | Lower — bolt-on |
| Cost per unit installed | $250 - $500 | $150 - $350 |
| Typical location | Front (most cars); all four (some cars/SUVs) | Rear (trucks/SUVs); all four (trucks) |
| Replacement interval | 50,000 - 100,000 miles | 50,000 - 100,000 miles |
Which Does Your Vehicle Have?
Most modern passenger cars use MacPherson struts on the front and either struts or shocks on the rear. Trucks almost universally use shocks on the rear with either struts or a coil-over-shock setup on the front.
- Front struts + rear struts: Most sedans (Civic, Camry, Accord), many compact SUVs (RAV4, CR-V, Outback)
- Front struts + rear shocks: Some SUVs (Equinox, Explorer), all full-size trucks (F-150, Silverado, RAM)
- All shocks (no struts): Body-on-frame trucks and large SUVs with double-wishbone or solid axle suspension
Can You Replace Shocks with Struts or Vice Versa?
No. Struts and shocks are not interchangeable. The vehicle's suspension is designed for one or the other. The mounting points, geometry, and structural requirements are completely different. Always replace with the same type your vehicle came with.
Why This Matters for Your Wallet
Understanding whether your vehicle has struts or shocks helps you evaluate repair quotes accurately. If a shop quotes you for "strut replacement" on a position that actually uses shocks, you may be overcharged. Similarly, shock replacement should never include an alignment charge since shocks don't affect wheel angles.
Prices last verified April 2026.