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Heavy trailers and bed loads can make the rear end sag and steering feel light. The Air Lift LoadLifter 5000 Ultimate air springs add up to 5,000 lbs of load-leveling capacity so your suspension stays level front to back. This keeps braking and handling predictable and maintains correct headlight aim. The system shares weight across all four wheels, reducing stress on your factory suspension and cutting down on sway or bottoming out when towing or hauling heavy gear.
No two loads are alike, and these air springs let you dial in the right feel for each one. You can run as low as 5 psi for a smooth unloaded ride or increase pressure up to 100 psi for maximum support when you’re towing or carrying a full load. Each side can be inflated independently using the included manual valves for easy side-to-side leveling when cargo isn’t perfectly centered.
Inside each air spring is a closed-cell urethane jounce spring that steps in automatically when air pressure drops or the road gets rough. The jounce acts as an overload spring, engaging progressively—the more weight you add, the stiffer it gets—to prevent bottoming out and absorb bumps smoothly. Even if the system loses air pressure, these internal jounces keep the suspension protected so you can stay on the road until adjustments are made.
These LoadLifter 5000 Ultimate springs are built with 2-ply, fabric-reinforced rubber and high-strength Zytel nylon endcaps that are lighter, stronger, and more corrosion resistant than steel. Air Lift’s exclusive roll plates shield the springs from moving parts under the vehicle and add a larger surface area for better performance at lower pressures. With heavy-duty brackets, hardware, and urethane internals that need no maintenance in hot or cold weather, this setup is made for long-term reliability.
Installing this system doesn’t require special tools or drilling through major components. The included mounting brackets, hardware, air lines, and manual inflation valves make it easy to bolt everything into place using basic garage tools. Once mounted, adding a compressor system with in-cab gauges (sold separately) lets you monitor and adjust pressure without stepping outside.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
Tanner @.
8/12/2026
Product works great and helps level the truck during towing. I have noticed a difference in the amount of travel my back wheels have when offloading. But I knew that would be a sacrifice.
Claire H.
8/11/2026
Glad to hear the install went smoothly! Thanks for the suggestion on the brake line/ABS brackets too. Definitely something that could make a good kit even better!
Brooke M.
3/24/2025
Happy to hear these are getting the job done! Your set up looks great, and man! What a beautiful picture. Blue, sunny skies, green grass, a cool breeze (I'd wager) perfect day to hitch up the trailer and get some work done!
Matt
3/24/2026
Been great! I really don’t like the internal jounce stops though. When you are unloaded and running lower bag pressure, a dip or bump will hit the bump stops really hard and jar your passengers in the backseat. It’s almost too uncomfortable to ride in the backseat now. As for the loaded and high pressure performance it’s great! Great handling and no sag at all when towing.
Mike L.
8/19/2026
Nice job Debbie, please let us know how they handle your trailer!
Kate F.
1/21/2026
Install looks fantastic Lloyd! Glad to hear they helped with the side to side movement. What kind of trailer are you going to be towing with the new set-up? Fun camper, work trailer?
Nick S.
1/5/2026
That is great to hear, even with some modifications I am glad this is what you were wanting. That truck bed camper set up looks awesome. Do you have any big trips planned this year?
Gwendolyn Y.
7/23/2025
That’s a pretty clever spot for the air fittings, I’m definitely taking note for the future! Also, if you ever run into instructions where the images are hard to see, feel free to reach out. We’re happy to email you a clearer digital copy anytime!
Brooke M.
5/30/2025
What all did you end up having to do to the brackets to get them to fit, if you don't mind sharing?
Brooke M.
6/2/2025
Emil
5/26/2026
Still good
Gwendolyn Y.
5/15/2025
Wow, Brian. Thanks so much for your in depth review and experience with installing the air bags. You gave some really solid tips and advice, especially the one about removing the tires. How's the ride now when you're off road?
Gwendolyn Y.
5/16/2025
Brooke M.
5/6/2025
That's pretty awesome, Dan. Thanks for sharing that photo too- it's helpful to see what you're talking about. :) Do you take your camper on any hunting trips?
Brooke M.
5/9/2025
Wow that's great, Slater :) Did you get the travel trailer a year ago too, or have you had it for a while? Any recommended destinations for your viewers at home?
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Victoria H.
2/20/2025
Thanks for including photos with your feedback, Ricardo! The airbags looks good.