For a typical passenger car, the core parts you’ll likely replace when repairing the suspension are shocks or struts, springs, control arms, bushings, ball joints, tie rods, sway bar links, and mounting hardware. This short list covers the most common components involved in a suspension repair.
Suspension systems vary by design—from MacPherson struts to double-wishbone or multi-link setups—and the exact parts you need depend on what’s worn or failed, the vehicle’s age, and whether it uses traditional coil springs or air suspension. A professional diagnosis is essential to confirm the precise components for your model.
Common suspension components
The following parts are the components most likely to wear out or fail in a conventional coil-spring suspension and are frequently replaced during a repair.
- Shocks or struts (dampers)
- Coil springs or leaf springs, depending on the design
- Control arms (upper and/or lower)
- Ball joints
- Tie rods and inner/outer ends
- Sway bar links (stabilizer links)
- Sway bar bushings
- Strut mounts and bearings
- Bushings for control arms and other linkages
- Wheel bearings or hub assemblies (if worn and needed)
When these parts are worn, you may notice handling changes, noises, or uneven tire wear, and replacing them in related pairs is common to restore stability and alignment.
Options and variations in parts selection
Depending on your car’s design and performance goals, you might choose different approaches to the repair. The following list outlines common options and considerations.
- Complete strut assemblies (strut, spring, and mount) versus replacing the shock/strut body and spring separately
- New control arms or redesigned replacement arms if the mounting points are damaged or bent
- Ball joints and tie rods replaced as a pair when wear is detected on both sides
- Polyurethane or OE rubber bushings, with polyurethane often offering longer life but potentially stiffer ride
- Air suspension components for models with air springs, including air bags, lines, compressors, and sensors
- Wheel bearing assemblies or hubs when wear is present or when tying into a new knuckle
- Professional alignment after installation to ensure proper tire wear and steering feel
In all cases, check your vehicle’s service manual or consult a qualified technician to ensure compatibility with your make and model and to determine whether replacement of related parts is required.
What you should do next
Diagnosis by a qualified technician is essential. A professional can identify worn or damaged components, verify whether replacement should be done individually or as a kit, and perform an alignment after installation to ensure safe handling.
Summary
Suspension repair typically involves core dampers (shocks/struts), springs, arms, joints, links, and mounting hardware. The exact parts depend on the vehicle’s suspension design and wear. When in doubt, replace in pairs where recommended and follow up with a wheel alignment to restore handling and tire life.