I know who would know the EXACT difference: Hotchkis. 704-660-3060
HOTCHKIS SPORT SUSPENSION SYSTEMS, PARTS, AND COMPLETE BOLT-IN PACKAGES Contact - HOTCHKIS SPORT SUSPENSION SYSTEMS, PARTS, AND COMPLETE BOLT-IN PACKAGES[
i wasted most of this day on hold with hotchkis they will not answer with a live person
