My front doors are sagging quite a bit now, and from the looks of it the hinge pin bushings are worn, which is throwing off the alignment of the doors. Initially I thought the hinges just came out of adjustment, but I'm thinking before I mess with adjusting anything I'll try to replace the hinge pin bushings (and if necessary the pins themselves) and see where that gets me. anyone done this before? They look like they'll be an asspain to get to, so any tricks to make the job a bit easier?