Everyplace I go say that there are no after market shocks for the 2003 and up, one ton two wheel dr dually trucks, dealer only item. I'm sure I've seen them mentioned here. If anyone knows a part #, I would sure appreaciate it. Mine have gone as far as they can go. I believe I've seen Rancho's mentioned and maybe Blisteens. (sp??) Sure do miss spell ck