The Dual Stage Max Control Arm Bushing incorporates both 50 and 70 Durometer ratings. It provides a softer acceleration side for increased movement and a harder deceleration side for restricted movement. Its design ensures it flexes only under throttle, returning to a static position during braking. This prevents the rear end from over-rotating under braking conditions. IMCA Southern Sportmod Legal
1978-1988 GM Rear Bushings
Overall Length: 2.00"
Diameter Small End : 1.86"
Diameter Big End: 1.922"
Inside Diameter: .50"