KW35230028 / 35230028 - Application Notes 79-93 Mustang Lowering Adjustment Range (F 1.4-2.5" / R 0.9-2.1") Spring Rates (F 400 / R Progressive) Footnotes: 2) Height adjustable front and rear axles (front axle threaded strut housings, rear axle adjustable springs + dampers)