Rough Country - 54620-6-inch Suspension Lift Kit w/Premium N3 Shocks for Ford: 04-08 F150 4WD FITMENT: Ford: 04-08 F150 4WD KIT CONTENTS: Front: Rigid front and rear crossmembers, durable differential skid plate for off-road protection, strut spacers, stainless steel brake lines, rack and pinion drop brackets, and new CNC machined steering knuckles with differential drop brackets to maintain the factory steering geometry; Rear: E-brake drop bracket, brake line relocation brackets, and fabricated anti-wrap lift blocks; Shocks: (2) Premium N3 Rear Shocks BENEFITS: Increased ground clearance; Track width remains the same; Computer Aided Design; Easy Installation; Specially designed anti-axle wrap rear blocks maintain stock ride quality while eliminating common lift block problem TECHNICAL NOTES: Requires minor cutting and drilling; 8-inch wide wheel is recommended ITEM SPECIFICS: Installation Time: 8-10 hours; Backspacing: 4.5-inches; Recommended Tire Size: 35-by-12.50; Weight: 251.5-lbs; Superseded: 576.20, 576S