Haven't gotten to that point yet but I do intend to pull my front fenders for painting/repairing when I do my engine swap (Ford 5.0). As I recall, there are a series of bolts along the top edge which are visible when the hood is open. When you open the door and look towards the front of the car in the general direction of the hinges, you can also see some large phillips head screws which appear to attach to the fender. At the front corner, the top radiator cross member bolts to the inner fender. There must be a few more behind the headlight or in that general area. I would detach all of the above, then start wiggling on the semi-loose fender and trying to determine where the remaining (probably well hidden) bolts are. It is pretty much a given that there will be some near impossible to access bolts remaining.