I just pulled the pan off of my '87 last night and it absolutely would not come out until I removed the inspection plate from the tranny. That little tiny extra bit of room made the difference. It seems like the last XJ I replaced the seal on, I didn't have to take the inspection cover off. I really can't be sure, it's been several years ago. It sure made a difference yesterday though. I should add that it is stock with no lift.