KW35230055 / 35230055 - Application Notes 07-09 Mustang; (Mustang, -GT, -Shelby) GT500 Lowering Adjustment Range (F 1.2-2.4" / R 1.4-2.2") Spring Rates (F Progressive / R Progressive) Footnotes: 2) Height adjustable front and rear axles (front axle threaded strut housings, rear axle adjustable springs + dampers)