the Mustang II was barely bigger than a wheelbarrow.
That’s true, …………but what also seems to be true is the confusion over what is termed a MII ifs kit, it is just called a Mustang II and somewhat resembles the original design but uses no OEM parts to my knowledge (dodge truck ball joints, maybe) the manufactures (Heidts, TCI, Fatman, etc) have re-engineered it with new heavier parts.