HARDRACE UNIVERSAL ADJUSTABLE DROP LINK SET RANGE 90-99MM 10MM STUD ROD ENDHardrace universal adjustable drop links are adjustable to eliminate preload on the anti roll bar. Preload is tension on the bar when the car is at rest on the ground. Ideally, the bar should be neutral with no tension on both ends (no twist in the bar at rest). Preload comes from inconsistent side side ride height due to coilovers or corner weight setups or simple a problem with your chassis. The handling is affected with a preloaded anti roll bar so