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15% Off Online Orders of Select Parts and Accessories. Enter Promo Code MMJ15 in Cart

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15% Off All Online Orders of Select Parts and Accessories
Receive 15% Off Your Online Purchase. Use promotional code MMJ15 at checkout to receive discount. Not valid in combination with any other discounts or promotions. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Excludes the following categories: Tires, Wheels, Batteries, Powerstop Brake Kits, Oil, Antifreeze, Refrigerant, Truck Boxes, Vent Visors, Bug Shields and BRANDS: Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Thule, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, JVC, MSD and BBK Performance. Valid online until 2:59 am EST on 4/1/17. Online orders scheduled for in-store pick up must be completed by closing on 3/31/17 for discount to apply.

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Control Arms


Control Arms

Control Arms act as a pivot point for the tires by fixing steering components to the vehicle. There are two basic designs, the wishbone (two points of attachments) and the single pivot design. Ball joints can be pressed in or bolted on to the control arm.

What is a control arm and how does it work

What is it?

  • The wishbone style control arm is more stable in lateral movement than single pivot design.
  • Single pivot control arm design is lighter and takes up less room than the wishbone design, but needs additional components to get the same lateral movement experience as the wishbone design.

How Does it Work?

  • Control arms fix steering components to the vehicle and act as a pivot point for the tires.

How is it Made?

  • Control arms are cast as either forged steel or aluminum.

Why Does it Fail?

  • Control arms fail when they are worn out or damaged.

What are the Symptoms of Failure?

  • Increased tire wear.
  • Uneven tire wear.
  • Clunking noise on bumps or turns.
  • Front end shimmy.
  • Hard steering.

What are the Implications of Failure?

  • Angle of the tire can cause an abrupt halt or tire damage
  • Debris can cause damage to others.

How Difficult is the Install?

Difficulty Rating:

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