KW10228006 / 10228006 - Application Notes 06-09 Charger & 08-09 Challenger 6cyl. & 8 Cyl Lowering Adjustment Range (F 0.8-2.0" / R 0.9-2.1") Spring Rates (F 500 / R 685) Footnotes: 2) Height adjustable front and rear axles (front axle threaded strut housings, rear axle adjustable springs + dampers) 28) The standard self leveling shock absorber has to be replaced with the supplied sport shock absorber.