i purchased a 71 eb w/ a chevy truck box installed outside the frame mounted. my problem is that the box is busted and someone welded my pitman arm on to it so i cannot find a pitman arm to install on my new box, to fit it to convert it to heim joint type steering. i am also in the process of installing a 2.5 inch sus. kit from toms, so a longer pitman arm or a drop one will work. thanks for any help.