1965-68 Impala, Belair, Biscayne, Caprice Replacement Rear Upper Arm Frame Bracket

The rear upper control arm bracket was designed with multiple holes so that the rear anti-squat can be adjusted. This is beneficial if the ride height has been changed or a lot of horsepower has been added to the engine. The angles change the instantaneous center in the rear so your traction can be adjusted. The bracket can be used with the stock upper arm but the lower holes in the bracket will not work unless you upgrade to gwtbc-51 or gwtbc-52 upper arm. The diameter of the stock arm is to big and it will hit the frame. The bracket is sold individually because some cars only had one upper arm from the factory.