I recently helped a friend replace the worn out springs in his 1989 Bronco2.
the first attempt used a set of Explorer springs... (That I had laying around) The
Bronco2 looked rediculous (Like Peewee Herman wearing Slashes hat and pretending to shred on Slashe's guitar) and was at least 4" above stock ride height....
He wouldn't even try driving it that way, so what we did was go out
to the junkyard and grabbed a set of Explorer sport monoleafs.
The monoleafs were not installed as is because the bolted to the spring spacers were too tall for the stock bronco2 U-bolts to reach, so we removed one to shorten the spacer and then while they were apart anyway a crazy idea came to mind... so we removed two more of the spacer blocks and installed a pair of the ranger "helper" leafs from a pair of Ranger Springs in my scrap bin.
Stock ride height, so Give but with both of use standing in a bussle rack in the rear receiver no actual "sag"
Now onto the ACTUAL discussion Ranger.
What I run in my Ranger are Explorer leafs, the springs I have are from a 4dr Explorer with the towing package. Getting my 300lbs onto the step in the rear bumper compresses the rear suspension by mabey 3/4".
I don't know why anyone would search past Explorer Leafs for a Ranger since they are a direct bolt in.