{"product_id":"air-lift-loadlifter-5000-ultimate-air-spring-kit-alf88391-for-2017-2018-ford-f-250-and-f-350-super-duty","title":"Air Lift LoadLifter 5000 ULTIMATE Air Spring Kit ALF88391 for 2017-2018 Ford F-250 and F-350 Super Duty","description":"LoadLifter 5000 ULTIMATE adjustable air spring kits feature all of the benefits of our heaviest rated air spring with the addition of an internal jounce bumper inside the spring for the ultimate in ride comfort. An Air Lift exclusive product! Fits vehicles with in-bed hitches. Tow and haul the heaviest loads with safety and comfort with LoadLifter 5000 ULTIMATE. Works with vehicle's leaf springs to provide up to 5,000 lbs. of rear load leveling capacity and keeps the vehicle riding stable, level and comfortable whether loaded or unloaded. Fully adjustable from 5 to 100 PSI. The closed-cell urethane foam jounce bumper inside the ULTIMATE air springs provide a cushion of air that absorbs shock, eliminates harsh jarring on rough roads and protects vehicles carrying heavy loads. Never bottom out again with the ULTIMATE! LoadLifter 5000 ULTIMATE air springs are maintenance free! Safely run with zero air pressure because of the internal jounce bumper. Replaces factory jounce bumper that is sometimes removed when adding air springs. Requires no drilling into frame! Includes industry-exclusive 60 Day No Questions Money Back Guarantee! Includes the most comprehensive Lifetime Warranty in the industry---covers all kit contents including brackets, fittings and air line. Air springs are built like a tire and are reinforced by durable, 2-ply fabric for maximum strength. Exclusive upper and lower roll plates included. Protect the springs from sharp edges, such as brackets or the frame. The kit includes 2 air springs, brackets, air lines, Schrader valve and all of the hardware needed for installation. Includes fully illustrated instruction manual. Add an Air Lift on-board air compressor system to inflate and deflate air springs with the touch of a button from inside or outside of the vehicle.\nLoadLifter 5000 ULTIMATE with internal jounce bumper to absorb shock for best ride comfort\nImproves handling, braking and steering response by maintaining ride height under load\n\u003cul\u003e\n  \u003cli\u003eUp to 5,000 lbs. of load-leveling capacity (Note: Do not exceed vehicle's GVWR)\u003c\/li\u003e\n  \u003cli\u003e60 Day Industry-Exclusive No Questions Asked Money Back Guarantee\u003c\/li\u003e\n  \u003cli\u003eExclusive Internal Jounce Bumper Inside Springs Absorbs Shock\u003c\/li\u003e\n  \u003cli\u003eDoes not fit Quadrasteer or cab and chassis applications\u003c\/li\u003e\n  \u003cli\u003eMaintenance free! Run safely with zero air pressure.\u003c\/li\u003e\n  \u003cli\u003eFits single rear wheel and dual rear wheel models\u003c\/li\u003e\n  \u003cli\u003eMaintenance Free; Run Safely w\/Zero Air Pressure\u003c\/li\u003e\n  \u003cli\u003eEliminates harsh jarring on rough roads\u003c\/li\u003e\n  \u003cli\u003eUp To 5000lbs Of Load Leveling Capacity\u003c\/li\u003e\n  \u003cli\u003eAir adjustable from 5 to 100 PSI\u003c\/li\u003e\n  \u003cli\u003eLimited Lifetime Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpgrade your truck’s load-carrying stability with the Air Lift LoadLifter 5000 ULTIMATE air spring kit, part number ALF88391. Designed for select 2017-2018 Ford F-250 and F-350 Super Duty models, this adjustable rear air spring system works with the factory leaf springs to help maintain ride height, improve handling, and provide a more controlled ride when towing or hauling. The system offers up to 5,000 pounds of load-leveling capacity, while remaining adjustable from 5 to 100 PSI. Do not exceed the vehicle manufacturer’s gross vehicle weight rating.\u003c\/p\u003e\u003cp\u003eThe exclusive internal jounce bumper provides additional cushioning inside each air spring to absorb shock, reduce harsh jarring on rough roads, and help prevent suspension bottoming. Because the jounce bumper supports the vehicle even at zero air pressure, the system can be operated safely without air pressure and replaces the factory jounce bumper that may be removed during installation. Maintenance-free construction, durable 2-ply reinforced air springs, and included upper and lower roll plates provide dependable performance and protection from sharp edges near the brackets or frame.\u003c\/p\u003e\u003cp\u003eThis no-drill installation kit includes two air springs, mounting brackets, air lines, a Schrader valve, installation hardware, and a fully illustrated instruction manual. It fits single-rear-wheel and dual-rear-wheel applications but does not fit Quadrasteer or cab-and-chassis models. Air Lift backs the kit with a 60-day no-questions-asked money-back guarantee and a limited lifetime warranty covering the kit contents, including brackets, fittings, and air line. An Air Lift onboard compressor system can be added for convenient inflation and deflation from inside or outside the vehicle.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUp to 5,000 pounds of load-leveling capacity to support heavy towing and hauling loads\u003c\/li\u003e\n\u003cli\u003eInternal jounce bumper cushions impacts, reduces harsh ride conditions, and helps prevent bottoming\u003c\/li\u003e\n\u003cli\u003eAdjustable from 5 to 100 PSI for customized support whether the truck is loaded or unloaded\u003c\/li\u003e\n\u003cli\u003eNo-drill, maintenance-free installation with reinforced air springs, roll plates, and comprehensive warranty coverage\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n2017 Ford F-250 Super Duty King Ranch\u003cbr\u003e\n2017 Ford F-250 Super Duty Lariat\u003cbr\u003e\n2017 Ford F-250 Super Duty XL\u003cbr\u003e\n2017 Ford F-250 Super Duty XLT\u003cbr\u003e\n2017 Ford F-350 Super Duty King Ranch\u003cbr\u003e\n2017 Ford F-350 Super Duty Lariat\u003cbr\u003e\n2017 Ford F-350 Super Duty Platinum\u003cbr\u003e\n2017 Ford F-350 Super Duty XL\u003cbr\u003e\n2017 Ford F-350 Super Duty XLT\u003cbr\u003e\n2018 Ford F-250 Super Duty King Ranch\u003cbr\u003e\n2018 Ford F-250 Super Duty Lariat\u003cbr\u003e\n2018 Ford F-250 Super Duty XL\u003cbr\u003e\n2018 Ford F-250 Super Duty XLT\u003cbr\u003e\n2018 Ford F-350 Super Duty King Ranch\u003cbr\u003e\n2018 Ford F-350 Super Duty Lariat\u003cbr\u003e\n2018 Ford F-350 Super Duty Platinum\u003cbr\u003e\n2018 Ford F-350 Super Duty XL\u003cbr\u003e\n2018 Ford F-350 Super Duty XLT\u003cbr\u003e\n2019 Ford F-250 Super Duty King Ranch\u003cbr\u003e\n2019 Ford F-250 Super Duty Lariat\u003cbr\u003e\n2019 Ford F-250 Super Duty XL\u003cbr\u003e\n2019 Ford F-250 Super Duty XLT\u003cbr\u003e\n2019 Ford F-350 Super Duty King Ranch\u003cbr\u003e\n2019 Ford F-350 Super Duty Lariat\u003cbr\u003e\n2019 Ford F-350 Super Duty Platinum\u003cbr\u003e\n2019 Ford F-350 Super Duty XL\u003cbr\u003e\n2019 Ford F-350 Super Duty XLT\u003cbr\u003e\n2020 Ford F-250 Super Duty King Ranch\u003cbr\u003e\n2020 Ford F-250 Super Duty Lariat\u003cbr\u003e\n2020 Ford F-250 Super Duty XL\u003cbr\u003e\n2020 Ford F-250 Super Duty XLT\u003cbr\u003e\n2020 Ford F-350 Super Duty King Ranch\u003cbr\u003e\n2020 Ford F-350 Super Duty Lariat\u003cbr\u003e\n2020 Ford F-350 Super Duty Platinum\u003cbr\u003e\n2020 Ford F-350 Super Duty XL\u003cbr\u003e\n2020 Ford F-350 Super Duty XLT\u003cbr\u003e\n2021 Ford F-250 Super Duty King Ranch\u003cbr\u003e\n2021 Ford F-250 Super Duty Lariat\u003cbr\u003e\n2021 Ford F-250 Super Duty Limited\u003cbr\u003e\n2021 Ford F-250 Super Duty Platinum\u003cbr\u003e\n2021 Ford F-250 Super Duty XL\u003cbr\u003e\n2021 Ford F-250 Super Duty XLT\u003cbr\u003e\n2021 Ford F-350 Super Duty King Ranch\u003cbr\u003e\n2021 Ford F-350 Super Duty Lariat\u003cbr\u003e\n2021 Ford F-350 Super Duty Limited\u003cbr\u003e\n2021 Ford F-350 Super Duty Platinum\u003cbr\u003e\n2021 Ford F-350 Super Duty XL\u003cbr\u003e\n2021 Ford F-350 Super Duty XLT\u003cbr\u003e\n2022 Ford F-250 Super Duty King Ranch\u003cbr\u003e\n2022 Ford F-250 Super Duty Lariat\u003cbr\u003e\n2022 Ford F-250 Super Duty XL\u003cbr\u003e\n2022 Ford F-250 Super Duty XLT\u003cbr\u003e\n2022 Ford F-350 Super Duty King Ranch\u003cbr\u003e\n2022 Ford F-350 Super Duty Lariat\u003cbr\u003e\n2022 Ford F-350 Super Duty Platinum\u003cbr\u003e\n2022 Ford F-350 Super Duty XL\u003cbr\u003e\n2022 Ford F-350 Super Duty XLT\u003cbr\u003e\n2023 Ford F-250 Super Duty XL\u003cbr\u003e\n2023 Ford F-350 Super Duty Lariat\u003cbr\u003e\n2023 Ford F-350 Super Duty XL\u003cbr\u003e\n2023 Ford F-350 Super Duty XLT\u003cbr\u003e\n2024 Ford F-250 Super Duty XL\u003cbr\u003e\n2024 Ford F-350 Super Duty Lariat\u003cbr\u003e\n2024 Ford F-350 Super Duty XL\u003cbr\u003e\n2024 Ford F-350 Super Duty XLT\u003cbr\u003e\n2025 Ford F-250 Super Duty XL\u003cbr\u003e\n2025 Ford F-350 Super Duty Lariat\u003cbr\u003e\n2025 Ford F-350 Super Duty XL\u003cbr\u003e\n2025 Ford F-350 Super Duty XLT\u003cbr\u003e\n2026 Ford F-250 Super Duty XL\u003cbr\u003e\n2026 Ford F-350 Super Duty Lariat\u003cbr\u003e\n2026 Ford F-350 Super Duty XL\u003cbr\u003e\n2026 Ford F-350 Super Duty XLT\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; 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