Ask around on this and powerstroke forum and you may find one from someone who has done a lift. I finally got rid of my factory drop brackets in my last dump run (a year after I did the lift) so I can't help you. You should find plenty of them in junkyards though; I believe Dana 44HD and Dana 50 use the same bracket, but that Dana 44 (F-150 and Bronco -- with coils rather than leaf springs) use a different one, so you should be able to get it from any TTB F250. Super Cab models have Dana 50 while standard cab came with Dana 44HD.