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When heavy trailers or bed loads start weighing down the rear, the LoadLifter 5000 Ultimate air springs step in with up to 5,000 lbs of load-leveling capacity. They help distribute weight evenly to all four wheels so your truck stays level, braking stays predictable, and steering feels steady. Whether you’re towing a camper or hauling gear, these air springs keep your ride balanced front to back and side to side for better control and safer headlight aim.
Even when air pressure drops low, the internal urethane jounce springs keep things comfortable and controlled. Each jounce acts as a built-in overload spring that engages progressively—the heavier the load, the firmer the support. They absorb bumps and road shock to minimize bottoming out, reduce sway and cornering roll, and can temporarily carry weight even with zero air pressure. You get a smoother ride loaded or unloaded without sacrificing stability under heavy strain.
These aren’t typical air bags. Each one uses a 2-ply, fabric-reinforced rubber construction paired with corrosion-proof Zytel nylon endcaps that are lighter and stronger than steel. Air Lift’s exclusive roll plates protect the bags from moving parts underneath the vehicle while adding surface area for improved spring rate at lower pressures. The result is dependable performance that holds up against rust, wear, and real-world road abuse for the long haul.
Installing load support shouldn’t slow you down. The kit comes with brackets, hardware, air lines, and manual inflation valves so you can mount everything with basic tools and get right to work. Inflate each spring independently for side-to-side leveling or equally for even support front to back. The valves can be mounted on the bumper for quick access, and if you want more convenience later, an optional compressor system can be added for in-cab monitoring and pressure control.
Customer Satisfaction Score:
89% were satisfied with this product
11% of customers were not satisfied
Ratings & Reviews
Mike L.
8/19/2026
Nice job Debbie, please let us know how they handle your trailer!
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.
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.
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!
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.
5/30/2025
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
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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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!