Our centerline lower control arm mounts gets the utmost ground clearance out of your rear end. These control arm mounts, moves your lower control arms from below the axle tube to the front and center of your axle tube, leaving nothing hanging lower than the center of your rear end. These are an outstanding addition on our 15 bolts. They bolt directly to the top of our HD weld on pads. They require being welded for proper control arm angle. Bolts for bracket are included.