SKU: 13925473939

1999-2004 Superduty Rear Loadlifter 5000 Air Spring Kit (ALF57390)

Sale price$328.50 Regular price$365.00
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Description

1999-2004 Superduty Rear Loadlifter 5000 Air Spring Kit (ALF57390)Restore the hauling confidence of your 1999 2004 Ford Super Duty with the Air Lift LoadLifter 5000 air spring kit. As these legendary trucks age, factory leaf springs can often fatigue under heavy loads; this kit provides up to 5,000 lbs. of load leveling capacity to bring your F 250 or F 350 back to a level, stable ride height. By installing these heavy duty air springs between your frame and rear axle, you eliminate the sag, trailer sway, and

Restore the hauling confidence of your 1999-2004 Ford Super Duty with the Air Lift LoadLifter 5000 air spring kit. As these legendary trucks age, factory leaf springs can often fatigue under heavy loads; this kit provides up to 5,000 lbs. of load-leveling capacity to bring your F-250 or F-350 back to a level, stable ride height. By installing these heavy-duty air springs between your frame and rear axle, you eliminate the sag, trailer sway, and bottoming out that compromise safety. Whether you’re towing a vintage fifth-wheel or hauling heavy equipment to the job site, the LoadLifter 5000 ensures your Super Duty maintains optimal steering and braking control for a more comfortable, stress-free experience.

Features
  • Provides up to 5,000 lbs. of load-leveling capacity for elite towing and hauling performance.
  • Fully adjustable air pressure from 5 to 100 PSI to perfectly balance any load.
  • Eliminates rear-end sag, trailer sway, and bottoming out for a safer ride.
  • Restores proper headlight aim and improves steering and braking response.
  • Constructed with rugged, durable components designed for long-term, reliable service.
  • Easy to install between the existing leaf springs and the vehicle frame.
  • Air Lift’s heaviest-rated kit for severe-use applications and heavy towing.
Compatibility Notes
  • Specifically designed for 1999-2004 Ford F-250 and F-350 Super Duty (Rear) models.
  • Fits both 2WD and 4WD configurations.
  • Ideal for pickup trucks, commercial chassis, and Class A, B, and C motor homes built on the Super Duty platform.
Notes
  • Do not exceed the vehicle's Gross Vehicle Weight Rating (GVWR).
  • This product is backed by Air Lift’s limited lifetime warranty.
  • Includes Air Lift's 60-day, no-questions-asked, money-back guarantee.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 13925473939

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Sue M
Grantham, US
★★★★★ 5
Love these socks
Size: Large, Color: (035) Steel / White / Black
Great quality socks
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Reviewed in the United States on April 26, 2026
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Kendra
Belleville, US
★★★★★ 4
Good quality
Size: Large, Color: (035) Steel / White / Black
These are a bit thicker then a compression sock and they come up higher on the ankle than a no-show sock normally does. They are very comfortable and soft.
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Reviewed in the United States on February 10, 2026
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K
Alexandria, US
★★★★★ 5
Good quality socks
Size: X-Large, Color: (001) Black / Black / White
Great value and great product and comfort. Not thin and wears well not like thin socks in a size that fits
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Reviewed in the United States on December 4, 2025
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Cookie
Cuba, US
★★★★★ 5
Socks
Size: Medium, Color: (001) Black / Black / White
Great price, perfect fit.
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Reviewed in the United States on January 23, 2026
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Glass
Bozeman, US
★★★★★ 5
I stay on your foot they don’t slip in your shoe
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
This is the only socks I wear Under Armour because they stay in place I wear a size 8, but they’re more comfortable with a large instead of a medium, but I wear both because I have them already and you can pull them to stretch them out a little bit
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Reviewed in the United States on May 12, 2026

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