Suspension Linkages

Is your suspension clunking over bumps, or are your sway bar end links preloaded after lowering or lifting? In this category we bring together sway bar end links, Panhard rods and upper trailing arms for you who want to restore correct geometry or sharpen cornering response.

What do sway bar end links and Panhard rods do?

Sway bar end links connect the sway bar to the suspension so it can counteract body roll in corners. The Panhard rod keeps a solid axle located laterally, and upper trailing arms control the axle position during compression and rebound. If the ride height is changed, the original lengths can cause preload or shift the axle. An adjustable Panhard rod, e.g. from ICON for the Ford F-250/F-350, can re-centre the axle after a lift kit, while adjustable end links can remove preload after fitting coilovers.

How to choose suspension linkages

• Bushing type: polyurethane, as in Torque Solutions links for the Subaru WRX/STI, typically gives more precision than rubber. Ball joints give a more direct connection but can transmit more vibration and require more frequent inspection.
• Adjustability: relevant if the ride height has been changed significantly or if you use an adjustable sway bar.
• Fitment: the links are vehicle-specific, e.g. for the Tesla Model 3, VW/Audi MQB or Toyota Tundra. Check model year, drivetrain and ride height.

Brands in the category include Whiteline and Superpro.

Installation and maintenance

Sway bar end links are typically tightened with the suspension loaded so the sway bar is not preloaded. Ball joints and bushings wear over time, and play, clunking or cracked dust boots are signs that a link should be inspected.

Frequently asked questions

Should I choose end links with ball joints or polyurethane?

Ball joints typically give the most direct response but can create more noise and require more frequent inspection. Polyurethane typically sits between rubber and ball joints. The choice depends on how much noise and vibration you accept in daily driving.

When do I need an adjustable Panhard rod?

Typically when a solid-axle vehicle has been lifted or lowered so the axle is shifted sideways relative to the body. An adjustable rod can re-centre the axle. The need depends on how much the ride height has been changed.

Do new suspension linkages require an inspection or wheel alignment?

Whether the modification needs to be inspected depends on the product and the vehicle, so check the approval for the specific part number. Panhard rods and upper trailing arms can affect the axle position, so a wheel alignment after installation is typically a good idea.