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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6
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Description
Air Lift 88399 LoadLifter 5000 Ultimate Helper Spring KitThe Air Lift 88399 LoadLifter 5000 Ultimate Helper Spring Kit for the rear of your Ford F 250 350 450 4WD Pickup features all the benefits of the LoadLifter 5000 with the addition of an internal jounce bumper inside the spring for the ultimate in ride comfort. The LoadLifter 5000 ULTIMATE works with your vehicle's leaf springs to provide up to 5,000 lbs. of front load leveling capacity and keeps the vehicle riding stable, level and comfortable whether
The Air Lift 88399 LoadLifter 5000 Ultimate Helper Spring Kit for the rear of your Ford F-250/350/450 4WD Pickup features all the benefits of the LoadLifter 5000 with the addition of an internal jounce bumper inside the spring for the ultimate in ride comfort.
The LoadLifter 5000 ULTIMATE works with your vehicle's leaf springs to provide up to 5,000 lbs. of front load leveling capacity and keeps the vehicle riding stable, level and comfortable whether loaded or unloaded. The built-in closed-cell urethane foam jounce bumper inside the air spring provides 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!
The Air Lift Air springs are built like a tire and are reinforced by durable,2-ply fabric for maximum strength. Exclusive upper and lower roll plates are included which protect the springs from sharp edges, such as brackets or the frame, and help increase load capacity up to 10%. Includes 2 air springs, mounting brackets, air lines, Schrader valve, hardware, and instructions.
Features:
- Built-In Internal Jounce Bumper
- Up To 5,000lbs Of Leveling Capacity
- Air Adjustable From 0 To 100 PSI
- Includes Roll Plates To Protect The Air Springs
- Quick Connecting, Easy-To-Use Air Fittings
- Built Like A Tire & Reinforced w/ 2-Ply Fabric For Maximum Strength
WARRANTY INFO:
Lifetime
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.5 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Great!
Size: Medium, Color: Multicolored19-4 Pack
I have ordered three packages of these over the years. They are solidly made and withstand washing and drying without the color fading and elastic band stretching. They are sized correctly and are super comfortable.
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Reviewed in the United States on April 27, 2026
★★★★★ 5
Cute, colorful underpants
Size: Medium, Color: A-multicolored-4 Pack
Bought these for my fiance because his old (other brand) ones were getting very tired. The price was great and they are brightly colored, which I get a kick out of. These do not bunch up while he's sitting, moving around, or pulling up his pants, and are comfortable with pants with a snugger fit around the legs and pelvis. They are soft, breathable, and durable, and have withstood numerous washes without an inkling of fading, tearing, and wear.
I had some difficulties with the shipping and the original order never arrived, but this was immediately resolved after one contact with customer service. They were very responsive and sent out a fresh batch minutes later, which arrived very quickly and without any issue.
Overall, impressed with the quality of both the underpants and the customer service.
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Reviewed in the United States on December 11, 2023
★★★★★ 3
KIND OF BAGGY
Size: Large, Color: A-multicolored-4 Pack
I guess I'm not built quite like the guy in the photo. I found these to be a little baggy. I buy briefs because I don't want baggy. They were, however, comfortable enough. I liked the wider waist band and the elastic was fine. I wouldn't buy them again though.
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Reviewed in the United States on July 27, 2024
★★★★★ 5
Decent Quality
Size: Medium, Color: Black, Navy Blue, Brown, Heather Grey-4 Pack
as per website. decent quality
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Comfortable and secure
Size: Small, Color: Black Grey
Nice quality non fly men’s underwear. Pouch holds your gear firmly. Ordered small (30” waist) but ended up ordering same item in medium for more comfort. Also went with the cotton version.
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Reviewed in the United States on November 7, 2025