What vehicles automatic transmissions will bolt up to my 91 ford ranger with a 4.0l and it's 2wd

 

Welcome to the forum

Only a 2WD will work no conversion is possible.

A4LD is the model, it needs to be from/for a 2.9l or 4.0l engine, 1994 was the last model year for A4LD, 1985 was first year, but 1987 -1994 are best years
These came in:
Bronco IIs
Rangers
Explorers
Aerostar
Mazda Navajo