I also have a 01 ranger with a bad 4.0
As well as a 01 Explorer 5.0 - The last push-rod v8 year from Ford.
Also thought about Ranger Body on explorer frame.
It appears as if the front and middle body mounts could fit?
But the rear mounts will not . Forcing custom fabrication. Easy for me .
But the flat rear frame on the explorer is making me reconsider.
The rear axle travel looks very limited. As compared to the pick up frame.
Add to that My supper cab will look a bit silly on the shorter 4 door frame.
Even with the flat bed