[randy500]

The 72 door hole patter kind of overlaps the 71 screw pattern on the bottom which makes it hard to drill, it can be done though. Top is easier because the holes are small, I don't recall but they might be so close to make it hard to drill the new hole.

Going from 72 to older panels is hard too but doable. On the top you can just put screw in the chrome piece in a different location to hit solid metal. On the bottom again its kind of hard because I think the hole pattern is slightly different, but you can install nut inserts with some fiddling around.

72 door panels really need 72 window regulators and door relays otherwise the door handle and window crank fit really tight to the door panel.