Won't hurt a thing. A non-available essential part for any 4wd in these years. I looked for that very reason, but remembered I have a '70 K/20 front end with a good spare.
Funny, I looked at the picture and first thought was is that my picture??? I have a pair of saw horses that look just like that, 2x4 added to top with a zillion cuts from ripping lumber and plywood and various colors of paint