Rear end
Just Scody playing mind games with the terminology. Many names used. Each division had its own name for a differential that supplied torque to both wheels.
What you might want to look for is a Dakota 8.25" with disc brakes and the Mopar flavor of a positive traction carrier. If it is a bit wide, the long tube can either be pushed out and shortened to match the short side, or it can have the required amount cut out of the center of the tube. Then purchase a new short axle and have both drilled for the 5 × 4.5 bolt pattern and the discs also. The Dakotas use a lot of 3.55 gears which IMHO is a good street ratio.
Another option would be the Ford 8.8" from a Ranger. 3.55 and 3.73 are common gears there with Traction Loc. If the RPM is a bit high the 3.31 gears would be good and tend to be quiet.