79-04 Mustang Torque Boxes Merillat Racing

These are weld-in torque boxes that replace your factory ones with multi hole options. These torque boxes allow you to fine tune your 4 link bar angles in your mustang to ensure that your anti-squat and instant center are where they need to be for your application. These are offered as a complete set, upper only, lower only, or the optional extended  upper torque boxes to give you even more adjustment options.