Because The Spacer Can Be Inserted And Removed Without Detaching The Suspension Mount, Quick And Easy Adjustments Can Be Made. Two Integrated Pieces (FF/RR For Use) And Four Separate Pieces (FR/RF For Use) Are Needed For One Unit.
Convenient Design Allows The Suspension Mounts To Be Raised Quickly, As Neither The Suspension Mount Nor Screws Need To Be Removed.