I voted for the 2 lens style one of the better looking bumpers for the early 70's Darts/Scamps IMO .But are you gonna change the front sheet metal/bumper to the earlier style also? Looks a bit oddball to Me. I ran a 70' rear bumper on my 72' Dart for a while and after a time it just bothered Me cause I knew everyone who knew anything about mopars would know it's incorrect.I eventually found a nice 4 light bumper and it's now grown on Me.