[rotorwrench]

Hot rodders sometimes cut the spring perches off with the two top bolt flange ears intact. They will use them for bolt on spring mounts for AV8 conversions using the later Ford axles for more strength in the drive line. The set up has proven to work OK but very good quality bolts have to be used for the backing plates.

A person can make them adjustable for jack stands with a little pipe fabrication using heavy clevis pins with drilled holes at specific intervals. Most folks just don't do it since the Asian jack stands are so inexpensive.