You would need the wheel diameter, wheel width, wheel backspacing and the tire size needed. Now thats the measurements needed to order wheels & tires, what actually fits your ride is a different story as we don't have a clue what the rear end is narrowed too, nor do we know if you have fenders, or no fenders, and thats just for the rear!
Welcome too the board but we are missing a bunch of info and if somebody tells you the dimensions you need without anymore info I would be very leary of ordering anything! Generally if I remember early ford rear ends flange to flange (mounting surface of the wheels) where 56" that carried over along time as that was pretty close to the wagons widths!