My rear 60 has not lived a kind life someone tryed taking the spindle nut off with out removing the locking keeper. So it messed up the threads so Jim Whaley one of the guys I deliver to has this company called Chase EM Back Tools
http://www.chaseembacktools.com/index.htm It opens up so you can use on a stud. It won't cut threads just rolls them back. He let me demo one thought I would share. It worked SWEET!!!The last pic is of my helper and Camera man tonight. YUP Baby Siting (Got to pay for the Bronco build some how) LOL