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A control arm, also known as an A-arm, is a hinged suspension link between the chassis and the suspension upright or hub that carries the wheel.
The inboard (chassis) end of a control arm is attached by a single pivot, usually a rubber bushing. It can thus control the position of the outboard end in only a single degree of freedom, maintaining the radial distance from the inboard mount. Although not deliberately free to move, the single bushing does not control the arm from moving back and forth; this motion is constrained by a separate link or radius rod.
This is in contrast to the wishbone. Wishbones are triangular and have two widely spaced inboard bearings. These constrain the outboard end of the wishbone from moving back and forth, controlling two degrees of freedom, and without requiring additional links.

Manufacturer Part Number: 520284, 520283, 2001 2002 2003 2004,K80398, K80397, 01 02 03 04,3L8Z3079AB, 4L8Z3079L, 3L8Z3078AB, 4L8Z3078R

Color: Black

Light Bulb Type:

AKKON

AKKON - For 2001-2004 Ford Escape / 2001-2004 Mazda Tribute Front Driver Passenger Side Lower Control Arm Ball Joint kit

SKU CALFFES01D_CALFFES01P
$59.99
A control arm, also known as an A-arm, is a hinged suspension link between the chassis and the suspension upright or hub that carries the wheel.
The inboard (chassis) end of a control arm is attached by a single pivot, usually a rubber bushing. It can thus control the position of the outboard end in only a single degree of freedom, maintaining the radial distance from the inboard mount. Although not deliberately free to move, the single bushing does not control the arm from moving back and forth; this motion is constrained by a separate link or radius rod.
This is in contrast to the wishbone. Wishbones are triangular and have two widely spaced inboard bearings. These constrain the outboard end of the wishbone from moving back and forth, controlling two degrees of freedom, and without requiring additional links.

Manufacturer Part Number: 520284, 520283, 2001 2002 2003 2004,K80398, K80397, 01 02 03 04,3L8Z3079AB, 4L8Z3079L, 3L8Z3078AB, 4L8Z3078R

Color: Black

Light Bulb Type:
$59.99

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