'70-1 Valiant/Duster/Scamp use the same exact fender, not counting emblems and moldings. A '67 to '76 fender will bolt on and work if you're willing to do some relatively minor modifications. '67 has no side light, '68 has a round side light, '69 has a rectangular side reflector, '70-1 has the flush mounted rectangular side light, '72-7 have the surface mounted rectangular side light. '70-72 have a welded on tab for the grille/latch support crossbar that would need to be transferred off the old fender (or fabbed) and welded onto any of the other years. There may be some other headlight areas that are different too for mounting the buckets and bezels. Naturally, molding and emblem holes would have to be drilled or filled as the case may be.
