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When towing a trailer or hauling a bed full of gear, rear-end sag throws off your handling and headlight aim. The Air Lift LoadLifter 5000 Ultimate air helper springs provide up to 5,000 lbs of load-leveling capacity to keep your ride steady and level. By sharing the weight across all four wheels, they help maintain safe braking, consistent steering response, and a confident feel even when the load gets heavy.
Rough roads and big bumps can make a loaded truck feel harsh and unstable. Each air spring in this system has a closed-cell urethane jounce spring inside that softens hits and helps prevent bottoming out. The jounce engages progressively—the more weight you add, the stiffer it gets—so your ride stays smooth without being bouncy. Even if air pressure drops, the internal jounce acts as a backup to temporarily carry the load until you can re-inflate.
Loads change day to day, and with adjustable air pressure you can set your suspension just right. Add air for towing stability or heavy cargo; drop it down to 5 psi when driving empty for a more comfortable ride. Manual inflation valves are included along with air lines so you can adjust pressure from your bumper or other accessible spot. If you prefer automatic control, an onboard compressor system with in-cab gauges can be added separately for push-button convenience.
These springs are made from 2-ply, fabric-reinforced rubber with corrosion-proof Zytel nylon endcaps that are lighter and stronger than steel. Air Lift’s exclusive upper and lower roll plates shield the bags from damage and extend their life while boosting load capacity. The urethane jounce inserts need no maintenance and hold up in both hot and cold weather conditions, giving you a dependable setup that lasts through years of towing and hauling.
The system comes ready to mount with brackets, hardware, air lines, and manual inflation valves. Bolt everything into place, add air, and go—no complicated setup required. With simple adjustments using basic tools, you get professional-level suspension support that’s built for heavy-duty work but designed for an easy DIY install.
Customer Satisfaction Score:
90% were satisfied with this product
10% 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!
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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Jerry R.
3/27/2017
Still working well.