Developed from our off-road race shocks, FOX Factory Race Series combines race-proven technology with new, cutting-edge features to provide enhanced ride-quality and winning damping performance you can bolt onto your truck or SUV.Specifications: Description_ASM Ford F-350 Super Duty: 2017-2023; Ford F-250 Super Duty: 2017-2023 Description_DEF Suspension Shock Absorber Kit Description_DES FACTORY RACE SERIES 2.5 RESERVOIR SHOCK (PAIR) Description_EXT Application specific valving to maximize performance. Description_FAB Performance Tuned For Vehicle Specific Application Description_FAB Durable Zinc Plated Seamless Alloy Body Description_FAB External Reservoir System Dissipates Heat Fast Description_FAB Black Anodized CNC Machined Aluminum Components Description_INV FOX 2.5 FACTORY SERIES RESERVOIR SHOCK Description_LAB Kit: 17-ON Ford SD Rear; 2.5 Series; P/B; 12.5in.; 2-3.5in. Lift Description_MKT Developed from our off-road race shocks, FOX Factory Race Series combines race-proven technology with new, cutting-edge features to provide enhanced ride-quality and winning damping performance you can bolt onto your truck or SUV. Description_SHO 2.5 Shocks