All fenders should work, but later ones (73+) will need to be notched for the front bumper if used on an earlier car.
All the fenders are the same, with one exception 70,71,72,and I think 73..Had a notch cut in them to except the small bumper filler. 74 thru 77 did not have the notch...
70-72 have the notch 73-74 dont have the notich, but have the same headlight adjustments and bezel 75-77 doesnt have the notch either, and the headlight adjustments/bezels are different but physically, they'll interchange and will work with some minor mod's
Great info...had that question in mind also as I need front fenders for my 72 4-door Tiauana Taxi (spelling?) project.