As far as I know, 69 was the first year to use 3 point belts as standard. My 68 did not have shoulder belts and all of the 70's I've seen had the regular 2 in 1 type. I just figured that it was Ford's way of meeting some government mandated rule until they could come up with a better way. I always liked having the option of using a lap belt with or without the shoulder belt, but they are a pain if you are using both. Must have cost Ford a small fortune to do it that way though.