If you own a 2006 Subaru Legacy and are researching suspension parts, you need a clear reference that lists every component, explains its function, and helps you identify what might need replacement. This index covers the full suspension system—front and rear—including steering components, bushings, and fasteners. Use it as a checklist for repairs, upgrades, or maintenance planning.
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Tiezful 10PCS Suspension Kit Fits for Subaru Outback Legacy 2005 2006 2007 2008 2009 Front Lower Con
Front Suspension Parts
The front suspension on the 2006 Subaru Legacy uses a MacPherson strut design with separate coil spring and strut assembly. Key components include:
Strut Assembly & Coil Springs
The strut assembly combines the shock absorber and coil spring into one unit. Over time, struts lose damping ability, causing excessive bounce, nose dive during braking, and poor handling. The OEM part number for the front strut assembly varies by trim and whether you have standard or sport-tuned suspension (e.g., GT models). Common aftermarket brands include KYB, Monroe, and Bilstein. If you only need the shock insert, you can replace just the cartridge, but most shops recommend replacing the complete assembly with new strut mounts and bump stops.
Control Arms & Ball Joints
Each side has a lower control arm (also called an A-arm) that connects the wheel hub to the subframe. The control arm has a ball joint at the outer end and two bushings at the inner ends. Worn bushings cause vague steering and clunking noises; a bad ball joint creates play in the wheel and must be replaced immediately. OEM control arms come with bushings and ball joint pre-installed, but you can also press in new bushings if the arm is still good. Upper control arms are not used on the front of the Legacy; only lower arms exist.
Sway Bar (Stabilizer Bar) & Links
The front sway bar (or anti-roll bar) reduces body roll in corners. It connects to the struts via two links (end links) and is mounted to the subframe with bushings. Worn end links cause a knocking sound over bumps; degraded sway bar bushings allow the bar to shift. Replacement end links are inexpensive and easy to swap. If you upgrade to a thicker sway bar, you may need heavy-duty bushings.
Steering Knuckle & Wheel Hub
The steering knuckle (spindle) ties together the strut, control arm, tie rod, and wheel hub. The hub contains the wheel bearing that allows the wheel to rotate. A failing wheel bearing produces a humming or growling noise that changes with speed. Hub assemblies are sold as a one-piece unit with the bearing pre-installed for simpler replacement.
Tie Rod Ends
Tie rods connect the steering rack to the steering knuckle. There is an inner tie rod (connects to rack) and an outer tie rod (connects to knuckle). Play in either causes loose steering and uneven tire wear. Outer tie rods are more frequently replaced; inner ones require removal of the rubber boot. Always get an alignment after replacing tie rods.
Rear Suspension Parts
The 2006 Subaru Legacy uses a multi-link rear suspension with separate coil springs and shock absorbers. It provides good ride comfort and handling.
Shock Absorbers & Coil Springs
Rear shocks are separate from the springs. The shock absorber controls rebound and compression damping. Worn shocks cause a bouncy ride and poor tire contact. OEM replacements vary by model; for example, the Legacy GT sedan uses a different shock than the base model. Coil springs rarely sag unless the car has high mileage or was overloaded. When replacing rear shocks, also replace the upper shock mounts and bump stops.
Control Arms (Lateral Links)
The rear suspension has multiple lateral links (upper and lower) that locate the wheel hub. Common wear items are the bushings in these links, which cause rear-end wander and clunking. The toe control arm (also called a camber arm) adjusts wheel alignment. If you lower the car, aftermarket adjustable arms allow proper camber and toe settings.
Trailing Arms
The trailing arm runs from the chassis to the rear hub, controlling fore-aft movement. Its bushing can degrade over time, leading to a loose feeling. Replacement trailing arms are available as complete units with new bushings.
Rear Sway Bar & Links
Similar to the front, the rear sway bar connects to the shocks or control arms via links. A thicker rear sway bar reduces understeer and improves cornering balance. End links and bushings are common replacement items.
Wheel Bearings & Hubs
The rear wheel bearing is pressed into the hub assembly (or on some models, into the knuckle). Noise from the rear that changes with speed usually indicates a bad bearing. Replacement hub assemblies are sold as a complete unit for easier installation.
Steering System Components
Steering Rack & Tie Rods
The steering rack converts steering wheel rotation into lateral movement of the tie rods. Leaks from the rack's seals require a rebuild or replacement. Inner tie rods attach to the rack; outer tie rods attach to the knuckle. Always replace both inner and outer if one is worn, and get a professional alignment.
Power Steering Pump & Hoses
If the steering feels heavy or whines when turning, the power steering pump may be failing. Also check high-pressure and return hoses for leaks. The pump is driven by a belt and is often replaced as an assembly.
Bushings & Mounts
Strut Mounts & Bearings
Front strut mounts sit at the top of the strut and include a bearing that allows the strut to rotate when steering. Worn mounts cause knocking noises and misalignment. Always replace mounts when replacing struts.
Control Arm Bushings
The lower control arm has two bushings at the chassis side. Pressing out old bushings and installing new polyurethane bushings can restore sharp handling after 100,000 miles. Many owners upgrade to polyurethane for better durability.
Subframe Bushings
The subframe is attached to the body with large bushings that can liquefy over time, causing clunks. Aftermarket inserts are available to stiffen the subframe.
Practical Replacement Recommendations
When tackling suspension work on your 2006 Subaru Legacy, prioritize safety and quality. Use this checklist:
- Always replace struts and shocks in pairs (both front or both rear) to maintain balanced handling.
- Inspect all bushings while you have components apart; rubber degrades with age even if mileage is low.
- Replace hardware (bolts, nuts) that may be stretched or corroded. Many OEM bolts are one-time use.
- Get a professional alignment after any component that affects wheel position (control arms, tie rods, knuckles, subframe).
- Consider your driving style: OEM parts offer comfort and longevity; aftermarket performance parts (e.g., Bilstein shocks, Eibach springs) improve handling but ride firmer.
For a daily driver, stick with reputable brands like KYB for struts and shocks, Moog for steering components, and OEM or equivalent for bushings. If you plan to keep the car long-term, installing fresh suspension parts will restore the original ride quality and extend the life of other components like tires and axles.
Use this index to identify exactly what you need for your 2006 Subaru Legacy. Whether you are fixing a clunk, refreshing worn parts, or upgrading, having a complete list helps you order the right parts and plan the job efficiently.