Dodge Dakota rear ends....

Actually, the early Dak rears are just a little over 63" wide (drum to drum) and the 6 lug wheels started in '91.

Track width and drum-to-drum are not the same measurement, I didn't have a drum to drum measurement for the Dakota's.

Regardless, if that drum to drum width is accurate, the Dakota rear is still over 6" wider than an A body rear (57" drum to drum). It's definitely not a "drop in".