I purchased a used 93 Ranger but it didn't come with the Owners Manual. Where are the jack points for changing each of the four tires? Thanks

 

The jack is formed to lift the rear axle at each side near the shock mount. I am not sure for the 4x4 front but the 2x4 just to the outside of the arm tocross member mount facing front you will see what lookslikesome sort of sway bar stop, as it is bent and positioned perfectlycup the sway bar if it were to make contact, that is the front lift point for the jack.
For a shop jack you can lift almost any were on the frame, howeverFord advises against lifting from the rear diff as itmay cause damage.