A 1990 Ranger Super Cab 4x4 will have the correct width, usually a 3.73 ratio, and factory Traction Lok. It will need the spring perches cut off, and new ones welded on.
Always be careful with four cylinder Rangers and some Fairmont/ Mustang with small engines. They will have brakes way to small to use on a big sedan like a 54 - 55 - 56.