Description This Kit provides 4 Upper Control Arm Reinforcement Rings. This mounts below the Upper Control Arm and Reinforces it by clamping it between this ring and the ball joint. This was standard equipment on later trucks (96-06) usually welded to the bottom side of the Upper Control Arm. This kit is highly recommended when upgrading 92-95 H1’s and Humvee’s to the later style Ball Joints that use 3/8″ Bolts.