Buy OEM 1991 GENERAL MOTORS Part # 22781132. Suspension Control Arm (Rear, Lower). Suspension Control Arm - Repair or Replace Control arms often don’t fail on their own, although

Control. Arm.
Extended Wheelbase. Suspension component that connects and provides pivotal movement of the Steering Knuckle to the vehicle. Bushing. Link Assembly - Suspension.

Suspension Control Arm

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Suspension Control Arm - Repair or Replace
Control arms often don’t fail on their own, although their associated bushings can break or wear causing a clunk noise when your 1991 goes over bumps or changes speed rapidly—whether braking or under hard acceleration. Control arms can also sometimes become bent, causing your vehicle to pull to the left or right.