Our new swivel cups will keep your springs happy during travel by allowing rotation and angular alignment. They work with our hollow screw jacks or you can run them on a stud on the rear end. Instead of a bolted together combo, our cup comes off by simply pushing the SLIC pin. This Patented SLIC Pin technology makes spring changes a breeze. This part number is our 5″ swivel 2-1/2″ drop bearing cup 9″ long 1″ screw jack.