2002 Buick Rendezvous - Track Bar

What is a Panhard Bar?

The suspension track bar, also known as Panhard bar or Panhard rod, provides support in the suspension systems of a variety of vehicles, most commonly in heavy-duty and off-road applications. The term "Panhard bar" comes from the French automobile manufacturer Panhard, who originally designed the support system in the early 20th century. The track bar is usually a rigid bar or rod that connects the chassis or body of the vehicle to the axle, but is able to pivot at both ends. One end of the bar is attached to the chassis, and the other end is attached to the axle assembly. This connection allows vertical movement to handle bumps and drops in the road, and prevents lateral or side-to-side movement that can cause frame damage and tire wear. The Panhard bar is effectively a stabilizer that prevents the axle from shifting under the vehicle's body and is typically used only on coil spring suspension systems on larger vehicles, older 4x4s, classic cars, and performance cars. Over time and with use, the track bar's bushings may wear out, or the bar itself may be bent or otherwise damaged. A worn or damaged Panhard bar can cause vibrations and looseness in the suspension, and may make your vehicle feel unsteady on the road. You may also notice noises from under the vehicle, and might experience wobbling at higher speeds. Noises may be more noticeable when driving at lower speeds, over speed bumps, or on rough terrain. Be sure to inspect and repair a bad track bar as soon as you notice an issue to ensure safe handling and prevent costly damage to your car's frame. For your next track bar repair or installation, shop O'Reilly Auto Parts, where we carry track bars and a variety of replacement suspension components for most vehicles.