Rough Country - 478.20-4.5-inch Suspension Lift Kit w/Premium N2.0 Shocks for Ford: 08-10 F250 Super Duty 4WD, 08-10 F350 Super Duty 4WD FITMENT: Ford: 08-10 F250 Super Duty 4WD, 08-10 F350 Super Duty 4WD KIT CONTENTS: Front: Lifted coil springs, radius arm drop brackets, extended sway bar links, track bar drop bracket, pitman arm, stainless steel braided brake lines, bumpstop spacers, and hardware; Rear: Fabricated anti-wrap lift blocks, carrier bearing drop bracket, u-bolts, and hardware; Shocks: (4) Premium N2.0 Shocks BENEFITS: 100% bolt-on installation; Increased ground clearance; Radius arm drop brackets allow for properly set caster; Proper caster is crucial to maintaining factory handling and driveability TECHNICAL NOTES: Fits Diesel and V10 Gasoline engine models only; Gasoline engine models will require exhaust modification to clear the front drive shaft; Carrier bearing bracket is needed for models with 2-piece rear drive-shaft (#1197) ITEM SPECIFICS: Installation Time: 6-8 hours; Backspacing: 4.5-inches; Recommended Tire Size: 35-by-12.50; Weight: 191.8-lbs; Superseded: 478S