I NEED TO KNOW WHAT BACK SPACING AND WHAT SIZE WHEEL AND TIRES I CAN RUN ON A 91 RANGER?

I HAVE A 91 RANGER AND IM GONNA BAG AND BD IT, WITH A TOYOTA FRONT CLIP. I WAS WONDERING IF I COULD SEE PICS AND FIND OUT THE BIGGEST WHEEL AND WHAT SIZE TIRE AND PROPER BACKSPACING, THANKS PATRICK AND ALSO IF I COULS SEE PICS OF SOME RANGER THAT ARE BD

20s with a 5 inch backspace will be plenty in front with a yota clip, but tehy will rub the body line in the rear.

WHAT ABOUT BACKSPACING FOR A SFBD 98+ RANGER?