QA1 Drag Race Upper Control Arm Kit - 1969-1972 Pontiac Grand Prix Cobalt These progressive rate springs are

These progressive rate springs are designed to provide improved performance without compromising ride quality characteristics

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QA1 Drag Race Upper Control Arm Kit - 1969-1972 Pontiac Grand Prix Cobalt These progressive rate springs areQA1's Drag Racing Control Arms for the 1969 1972 Pontiac Grand Prix are what every drag racer needs. Integrated with QA1's Ultra Low Friction Ball Joint and composite bushings provide bind free movement during launch to promote optimal weight transfer. The adjustable droop sop allows user to dial in front end rise during launch. A new feature with these Control Arms are the billet aluminum shafts which help reduce front end weight yet provide