[71blksuper4x4]

I would say by gathering information on this thread, that the cruise on your truck could have been added by the dealership in mid 73' as it could have still been on the lot and needed a "Push" to get it sold. Like others have said, there is no proof out there that these would be correct, but the one I found in a 72' with the almost same parts, I will go ahead and use in my 72' crewcab 1 ton 4x4 build I have planned, but I will still persue finding the correct parts for my 71'. The cruise systems like yours and the one I found could have been installed anywhere from 73- present, but they changed the cruise system in 75ish I believe to be on the turn signal stalk. So I believe these were installed somwhere between 73-75ish. Trevor