99k on the clock. I did all the work myself; I don’t remember seeing a write-up at all. Make sure you clean out all that old gear oil out of the new one you get, it’s much easier when it’s out of the car. I check my pinion gear run out before I installed it, just to make sure it was in spec. Remove exhaust or just the cat-back. Remove DS and loosen the rear sway bar. Make sure the diffy is supported with a jack at this point. Remove all the half shaft nuts & bolts that (8 per side I think?). Remove mustache bar (2 bolts) Remove rear differential to subframe (2 nuts). This is a good time to replace your differential bushings if you are so inclined-PITA. Drop old diffy. Good LUck! If you have any questions just ask.