Rough Country - 510.20-2.5-inch Suspension Leveling Lift System w/Premium N2.0 Shocks for Ford: 80-83 F100 4WD, 80-96 F150 4WD FITMENT: Ford: 80-83 F100 4WD, 80-96 F150 4WD KIT CONTENTS: Front: Lifted coil springs, radius arm drop brackets, I-beam drop brackets, and hardware; Rear: Leaf springs, u-bolts, and hardware; Shocks: (4) Premium N2.0 Shocks ITEM SPECIFICS: Installation Time: 6-8 hours; Backspacing: Factory; Recommended Tire Size: 32-by-11.50; Weight: 233.56-lbs; Superseded: 510S