i believe its either the same, or a LITTLE more narrow. seems like my fronts are in farther than my rear, but that could be sheet metal difference. its not a big difference at all either way.
The front on a 86 Toyota is around 56 1/2 mounting surface to mounting surface, just clipped one for my Ranger and I gave it a quick measure to make sure it was close to a stock Ranger rearend.