You will need one of the lever type bead breakers or as I do large C clamp to break the bead loose. Then it just a matter of prying the tire off the rim. If the tubes that are in the tires now are still good, try and save them. If not, cut the tire off. Use real tire spoons not the Ford supplied ones. 2 will work but 3 can be better.
https://www.google.com/search?client...del+t+clincher
39portlander re; I do know keeping that darn tube valve stem centered is a witch, some of these guys go nuts with the baby powder
Yes on the split rims, keeping the valve stem in place is a real bugger. I think with metal stems so it is locked in place would be a heck of a lot easier, the rubber stems just slide out as the rim is closed up. Then you try an clock the stem so it rocks into place when you close it up and then goes the other way!!! LOL