Skip the auto shop - Our mechanics make house calls

Q: What is a wishbone suspension?

asked by on

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.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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

Get a quote

What others are asking

Q: When I hit a little bump or pot hole on my right passenger front side, it feels like it skids a bit

The A6 has some pretty large bushings in the lower control arms. Especially the ones toward the rear of the arm. When those bushings wear out, the rear of the control arm can flop around quite a bit, changing all...

Q: Same suspension part keeps breaking

The lower ball joint is pressed into the lower control arms when replaced. The replacement joint can be pressed into the old lower control arms or you could replace the complete lower control arm that comes with new inner pivot...

Q: When replacing ball joints can you just replace the ball joints or do you have to replace the whole control arm?

The ball joint on this vehicle can be replaced separately from the lower control arm. However, on this vehicle it is also a known problem where the ball joint becomes loose inside the mounting in the lower control arm and...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...