Are the bushings the correct circumference for going into the leaf spring? Is it only the length of the sleeve and the bushing? If it is only the length you can trim the bushing and sleeve, but you want to make sure you cut a straight line. Sometimes they can be tight and you have to tap them with a hammer to get them in place. Also, make sure your leaf spring is not twisted at all and preventing to line up correctly. Are you a member at ExplorerForums? They have a couple write ups on there about installing the Warrior 153 shackles.