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When heavy trailers or bed loads make your rear end sag, steering and braking can get sketchy. The LoadLifter 5000 Ultimate air springs add up to 5,000 lbs of load-leveling capacity to keep your truck sitting level and handling steady. Whether you’re towing a camper or hauling gear, these bags share the weight across all four wheels so your suspension doesn’t bottom out and your headlights stay aimed where they should.
Air Lift’s internal urethane jounce springs act as a safety net and comfort boost inside each air bag. If air pressure is low, the jounce springs step in to absorb bumps and shocks, keeping you from bottoming out until the system’s re-inflated. They engage progressively—the heavier the load, the stiffer they get—so your ride stays smooth and controlled even on rough roads or uneven loads.

Every trip is different, so having control matters. With manual inflation valves and air lines included, you can dial in the pressure from 5 psi to 100 psi depending on how much weight you’re carrying. Equal pressure levels your truck front to back, while independent pressure tuning handles side-to-side balance when loads are off-center. Add an optional compressor kit later if you want in-cab or wireless pressure control.
These 2-ply, fabric-reinforced rubber air springs are made for real hauling duty. Zytel nylon endcaps are lighter than steel yet stronger and more corrosion resistant, preventing leaks that weaken other systems over time. Exclusive roll plates guard the bags against contact with moving parts under the vehicle and boost load capacity by spreading out the surface area for a steadier ride at lower pressures.

Installing true suspension support doesn’t need to be complicated. The LoadLifter 5000 Ultimate system comes with all brackets, hardware, and inflation lines needed for a bolt-on setup using basic tools. Once mounted, just inflate through the included valves—most people put them on the bumper for easy access—and you’re ready to tow with confidence backed by a lifetime warranty and 60-day satisfaction guarantee.
Customer Satisfaction Score:
93% were satisfied with this product
7% 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?
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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!