SuperSprings K-10-002 SumoSprings Fits 19-21 F53Air Helper Spring SumoSprings SumoSprings; Front And Rear; SSF 170 40 2 And SSR 180 54 1; For Ford F 53; SPECIFICATIONS: Max Load: 3000 lbs. FEATURES: Kits Contain Both Front And Rear Sumosprings Sold As A Pair Maintenance Free Enhances Load Carrying Ability 3000 Lb Front And 7000 Lb Rear Capacity At 50% Compression Reduces And Stabilizes Sway Improves Overall Driver Control And Ride Comfort Compress Up To 80% Of Original Height With Full Memory