Q: What is a wishbone suspension?

asked by on November 17, 2015

What is a "wishbone" or "double wishbone" suspension?

A double wishbone suspension is an independent suspension design using two wishbone-shaped arms to locate the wheel. It’s also known as an upper and lower A-suspension. The wide end of the wishbones is mounted to the chassis of the car at two points which allow the arm to move up and down providing suspension travel. The small ends have the steering knuckle or wheel carrier fastened between the two arms, and the shock absorber and coil spring mount to the wishbones to control vertical movement. The double wishbone system requires the least compromise when engineering for tire and vehicle control, but also requires the most space for components. Because of the space requirements, it’s typically used only on front suspensions where trunk space is a consideration, and more often in the rear suspension of sports and high performance cars where cargo capacity takes a secondary role.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

Air suspension failure due to damaged components?

Hello, thank you for writing in. The only component that should be in that area is the air suspension strut itself, its sensor, and its electrical connections. Due the the damage being electrical, its possible you have tampered with that...

I have a clinking noises from the rear when I am driving over a bump. The noise is most relevant in hot weather.

Hi there. The noise sounds like the control arm bushings are worn and making the suspension walk around. Jack up the vehicle and check the suspension on the rear for any looseness and if there is any broken or damaged...

Steering/ front end vibration at high speeds

Hey there. I would recommend checking your intermediate shaft from the steering wheel to the rack and pinion. If the joint on your intermediate shaft has failed, this can cause the steering wheel to shake at certain speeds. If the...

My front end dropped to the ground

Hello there. If something is scraping on your 2000 Ford Mustang it should not be driven until repairs have been made. Many faults will cause the front end to drop like this, the most common would be a failed ball...

What does it mean when your car creaks when you go over things like speed bumps?

This is oftentimes related to worn out bushings in various suspension components. Control arm bushings are an important part of vehicle suspension systems. Bushings are made of rubber, which separates the faces of two objects while allowing a certain amount...

Is It Safe To Drive a Vehicle With Broken Suspension?

Driving a vehicle with a broken suspension is like walking with a bad knee or broken leg. The support is gone, the weight is shifted and your stability is compromised. This condition can cause the vehicle to sway or instability...

Axle Bent and Cost

Sent to CS and answer made live.

When I drive my car is fine but when I hit a bump in the rode it shakes and swerve a little. What can that be?

You could have bad lower ball joints on the lower control arms. You should have entire front suspension checked for worn loose components.

Rubbing/vibrating noise from front end

Hello. From what you describe it would appear that your tire may be making contact with something and causing the noise and vibration. Noises can be difficult to diagnose without driving the vehicle, however if you have determined what wheel...

Related articles

Symptoms of a Bad or Failing Wheel Hub Assembly
Common signs include a roaring sound from the tires area, vibrating steering wheel, play in the tire/wheel combo, and clicking sound from the wheels.
What Components of the Suspension or Steering Systems Are Prone to Fail?
In In automotive usage, the term "suspension" refers to all of the parts that connect the vehicle to the road. Every car, truck, and utility vehicle has a suspension that is designed to do three things: Support the vehicle...
What Are the Dangers of Lowering My Car?
It It has become fairly common for car owners to modify their cars’ suspensions to make their car ride lower. Usually aesthetics are one of the most important reasons for reducing ride height — many people prefer the appearance of...