Rough Country - 415.20-4-inch Suspension Lift Kit w/Premium N2.0 Shocks for Ford: 77.5-79 F250 Lowboy 4WD FITMENT: Ford: 77.5-79 F250 Lowboy 4WD NOTES: Does not fit first half of 1977 model year; Fits "Lowboy" models only; Dana 60 front axle models will require Dana 60 steering block (#6608), sold separately; Due to this kit's weight, it must be shipped to a business address with freight truck unloading ability KIT CONTENTS: Front: Lifted leaf springs, steering block, and hardware; Rear: 2-inch lift blocks and u-bolts; Shocks: (4) Premium N2.0 Shocks SPECS: Installation Time: 5-7 hours; Recommended Tire Size: 35-by-12.50; Weight: 188.87-lbs; Superseded: 415H FITMENT: Ford: 77.5-79 F250 Lowboy 4WD