Rough Country - 520.20-4-inch Suspension 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 NOTES: If vehicle is equipped with a front sway-bar, drop brackets are required (#1018); Extended front brake lines are recommended (Front: #89310 Rear: #89330) KIT CONTENTS: Front: Lifted coil springs, radius arm drop brackets, I-beam drop brackets, power steering pitman arm, and free single steering stabilizer; Rear: Leaf springs and u-bolts; Shocks: (4) Premium N2.0 Shocks SPECS: Installation Time: 6-8 hours; Backspacing: Factory; Recommended Tire Size: 33-by-12.50; Weight: 269.91-lbs; Superseded: 520-P/U-H FITMENT: Ford: 80-83 F100 4WD, 80-96 F150 4WD