So i got stuck into helping a friends neighbor replacing his rear diff in his 91 ranger..we are trying to find out what all is a bolt in and go replacement in case the pull it yard doesn't have one. If anyone wants to help,or has a idea. id appreciate it...Im currently making google search work overtime.

 

should be like a blazer rear my dad had a ranger when i was younger and we never blew the rear

a friend of mine has one in his back yard ill take a look if it stops snowing tomorrow

 

So far what ive found is a mazda b3000 is a ranger with a mazda label.

 

I think you're in trouble. I immediately thought..well duh, like S10..
So i searched
91 Ranger Aerostar Explorer Bronco
bingo.. right up top!

But.. I was right and I was wrong:
Ford Ranger Rear Axles - The Ranger Station

NOT gonna be easy to find plug and play