What are rear trailing arm bushings?
Michael Gray
Updated on May 16, 2026
The trailing arm bushing allows your car's rear trailing arms (which locate the rear suspension and tire) to move up and down over road surfaces and bumps, and allow for compression of the rear coil spring when the car is heavily loaded.
Are rear trailing arm bushings important?
Your vehicle won't stay in a straight line – Worn bushings or a broken trailing arm can cause the rear axle to move independently from the chassis. This causes vehicles to sway, as the rear wheels may actually change the direction of the vehicle.How do you know if your rear trailing arm is bad?
What are the Signs of a Bad Trailing Arm?
- Clunking from the rear axle. ...
- Vehicle is unstable and won't keep to a straight line. ...
- Excessive and uneven rear tire wear. ...
- Vehicle is lower on one side. ...
- Extreme heat. ...
- Excessive twisting. ...
- Fluid leaks.
What is the purpose of a rear trailing arm?
A trailing arm has a big job to do. First, it's got to provide an unyielding link between the chassis and the rear axle. Next, because the shocks are mounted to it, it must support the weight of the vehicle as well as the tension and compression forces generated between the rear wheels and the chassis.Are trailing arm bushings important?
The trailing arm bushings are critical parts of your vehicle's suspension. If you notice any of the above symptoms, contact a local ASE certified mechanic so they can inspect and replace the trailing arm bushings if needed.Honda/Acura Rear Trailing Arm Bushing Replacement
How much does it cost to replace trailing arm?
The average cost for trailing arm replacement is between $323 and $351. Labor costs are estimated between $106 and $133 while parts are priced at $217. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location. Related repairs may also be needed.How much does it cost to replace bushing?
The cost for a new bushing ranges between $5 and $150, while the average labor costs are between $100 and $300. This means you're looking at a total of between $105 and $450 for one bushing replacement.Is it safe to drive with a broken trailing arm?
Cracked or bent trailing arms should be replaced. Driving with a cracked trailing arm could lead to separation of that side of the axle, and it's only a matter of time before further damage occurs.What happens when bushings go bad?
When bushings wear, they allow more movement. The driver may feel a shimmy from the front of the vehicle, or hear clunking or rattling noises on rough roads, when turning the wheel or in hard braking. Drivers may also experience poor handling or loose steering.When should you replace car bushings?
HOW DO I KNOW IF MY BUSHINGS NEED TO BE REPLACED?
- Excess vibration and road noise in the cabin of your vehicle.
- Friction sounds like creaks or banging coming from the wheel fenders.
- Any kind of frame rattling upon impact (from bumps or other rough road terrain)
- Overly loose steering.