Almost everything
70 / 71 share the same side lights & headlight mounts
71 has an extra notch at the front above the headlights the front chrome strip is different
72-74 have different sidelights & no provision to mount headlights as they are part of the grille assy
Any year will bolt on tho
There were also three different 70 only fenders. Standard with 14" wheels, wider fenders with 15" wheels and the AARs/TAs had fender widths between the 14" and 15"! The difference in width is in the area of the wheel well. I'm not sure we as a group on this forum have figured out exactly which fender the after market is reproducing. Others will chime in!