Shoulder harness

I don't think the 70 "did" I think they had what amounts to two seat belt latches in the middle. You latched the seat belt to one, then reached up and took the separate shoulder belt and inserted it into the second latch. They were individual, separate belts

I don't know when things changed, my 74 Scamp has one latch, and an integrated, annoying belt/ shoulder combo in one