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Heavy trailers and bed loads can make the rear sag, throwing off steering and braking. The Air Lift LoadLifter 5000 Ultimate air springs add up to 5,000 lbs of load-leveling capacity to keep your truck level and stable under weight. By sharing the load across all four wheels, they cut down on squat, sway, and uneven tire wear so you can tow or haul with more control and confidence.
When bumps or uneven roads hit hard, the built-in urethane jounce springs step in to soften the impact. Each jounce sits inside the air spring and engages progressively—the more weight you carry, the stiffer it gets. It cushions rough roads, reduces sway, and helps prevent bottoming out if air pressure drops. Even with zero air pressure, the jounce springs can temporarily carry the load so you stay supported until you can adjust or repair the system.
Every load is different. These air springs let you fine-tune support to match what you’re hauling with air pressure adjustable from 5 psi to 100 psi. Add pressure when towing a heavy trailer to keep your ride height level and drop it back down for everyday driving comfort. The kit includes manual inflation valves and air lines that mount on your bumper for quick access, or you can add an optional compressor system to adjust from inside the cab.
Each LoadLifter 5000 Ultimate spring is built for long service life with 2-ply, fabric-reinforced rubber construction. Corrosion-proof Zytel nylon endcaps are lighter and stronger than steel, while exclusive upper and lower roll plates protect the air bags from damage. This combination resists leaks, handles real-world use in hot or cold conditions, and keeps your suspension working season after season.
Everything needed for setup comes in the box—mounting brackets, hardware, inflation valves, and airline kit. The design bolts into place cleanly so you can get it installed with basic tools. Once mounted and inflated, the LoadLifter system delivers reliable support that transforms how your truck handles heavy loads day after day.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews
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!
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!
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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Jeffery
4/22/2024
The air bags are doing a great job.