Energy Suspension GM Lower Control Arm Bushing Set - Black - GM Metric Chassis 3550224-104-XXL The pressure upon the head

The pressure upon the head can be adjusted by replacing the special foam rubber pads placed between the earmuff and the helmet

It delivers outstanding performance in extreme environments like autocross

Die-cast aluminum pumps for performance SBC engines feature heat-treated levers

Used with Performoflex

ATI Super Damper has become one of the industry's standards in harmonic vibration control

Energy Suspension GM Lower Control Arm Bushing Set - Black - GM Metric Chassis 3550224-104-XXL The pressure upon the headFor both front and rear of suspensions on cars, trucks and SUVs. Made of Energy's Hyper Flex performance polyurethane for optimum performance and durability. Maintains proper alignment under extreme conditions on the street, track or off road. Improves vehicle handling, cornering and overall control. Full floating for smoother, efficient operation. Outlasts and outperforms rubber. Vehicle Applications: 1978 1980 Pontiac Grand Am 1978 1983 Chevrolet