To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
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Heavy trailers, campers, or bed loads can make your rear end sag and throw off braking and steering. The LoadLifter 5000 Ultimate air springs add up to 5,000 lbs of load-leveling capacity so your truck stays level and stable even when it’s working hard. Leveling the rear helps maintain safe headlight aim, steadier handling, and proper weight balance across all four wheels for more confident towing and hauling.
When the ride gets bumpy, these air springs don’t just hold pressure—they cushion the impact. Each bag has a closed-cell urethane jounce spring inside that engages at low air pressures to absorb road shock and reduce sway. The more weight you add, the stiffer the support becomes, giving you a smoother ride with less bounce or bottoming out. And if air pressure drops unexpectedly, the internal jounce acts as a built-in safety net to temporarily support your load.
Every haul is different, and this system lets you set up your suspension for each one. Adjust air pressure anywhere between 5 and 100 psi using the included manual inflation valves and air lines. Add air when towing or carrying a heavy load to keep things level. Drop pressure back down when unloaded for a softer ride. Each side can also be adjusted independently to even out off-center loads for better balance and control.
The details that matter most are built into the design. Each LoadLifter 5000 Ultimate features heavy-duty, 2-ply fabric-reinforced rubber air springs with high-strength Zytel nylon endcaps that are lighter, stronger, and more corrosion resistant than steel. Air Lift’s exclusive roll plates protect the bags from contact damage while boosting load capacity and improving spring performance at lower pressures. Urethane jounce inserts require no maintenance and hold up in extreme temperatures.
Installation is straightforward with included brackets, hardware, air lines, and manual inflation valves—everything you need to mount the springs cleanly on your rear axle without extra parts. You can also add an optional compressor system later for in-cab monitoring or wireless control. Once installed, the LoadLifter 5000 Ultimate gives you dependable support mile after mile with a lifetime warranty and a 60-day satisfaction guarantee backing it up.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
Katrina B.
10/28/2022
I see that we do have a tee fitting that will fit this application. Please see part # AL21838.
Nick S.
9/15/2025
That is great to hear Paul! I am glad they are working well and the install was super easy. What are you towing with your vehicle??
Charles
8/1/2024
Still functioning perfectly after one year of use.
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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?