Im finding tons of 73-4 parts but no 72 stuff really. Will any of the 73 parts fit on my 72?
Yes it will but I'm not sure if there are some differences. Nacho will know. Wait for his answer.
look harder, be patient. the 72 stuff looks better. bumper and grille should be relatively easy finds.
yes will fit... even if you don't want the rubber bumper fillers you will need to use the 72 brackets to save the gap... also use the 73/74 upper brackets, since I think 71/72 has an internal reinforcement welded internally to bolt the upper brackets and 73/74 have an "ear" where bolts the bracket with a fastener mounted on bracket itself
the only exterior difference is really as far I know the arrow in the middle, unexistant on 73/74
about the rest of nose just in case:
73/74 fenders have the wheel opening cut higher so you won't be able to use 72 moldings... and 73/74 moldings have different profile. If you mix molds on rear and front, will have different ones on both ends.
also front splash shield is different, than 72, so will need to use also the 73/74 ones on 73/74 fenders.