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Heavy gear or a loaded trailer can make the rear end dip, throwing off braking, steering, and headlight aim. The Air Lift 1000 Air Helper Springs add up to 1,000 lbs of load-leveling support inside your existing rear coil springs to keep things level. By carrying some of the weight that normally strains your suspension, they help maintain normal ride height and reduce tire wear, squat, and sway when the load gets heavy.
Every trip is different, and this setup lets you dial in just the right support. You can manually inflate each air spring from 5 psi to 35 psi using the included Schrader valves for smooth performance whether you’re towing or running empty. Add pressure when hauling to tighten up handling, or let it out when you want a softer unloaded ride. If you install dual air lines, each spring can be inflated separately to level uneven loads side to side.
Road dips and bumps that used to bounce the rear end now get soaked up by these molded polyurethane air springs. They absorb road shock and help stabilize braking and cornering so the vehicle feels planted on highways or winding roads. The extra support keeps steering response predictable even with a full load behind you.
This kit fits directly inside your rear coil springs using standard tools—no need for big modifications. It comes complete with two air springs, heat shields, tubing, Schrader valves, and hardware so you can get the job done at home. Once installed, you can raise or lower pressure anytime with a simple air compressor or upgrade later with an onboard system for fingertip control.
Alternate Instructions
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
Big B.
4/2/2026
5 years later still working great hold air wo leaks and prevent bottoming while towing 3000 lbs
Brian H.
1/23/2015
One year in and they are working very well. I did not test them terribly much this past year, but I have to say what we have done has all gone very well. I am very happy with this purchase and have no complaints.
Mike L.
10/8/2025
The most common reason why air bags leak is that the cuts on the hoses aren't made perfectly square. Get a soapy water solution, and brush it on all the air line connections, then pressure the system up. Then look for the bubbles. That's the best way to find leaks...
Nick S.
11/3/2025
HECK YEAH! That is great to hear. You may be the first person hauling 2 dirt bikes on a sienna and that's pretty sweet. I am glad to hear these got your bottoming out issue fixed for you. What kind of dirt bikes do you have? Are you able to get them out often and hit the trails if that is what they say?
Michael D.
9/11/2018
I have now been using the airlifts for a year. We have towed our pop-up several thousand miles. The airlifts continue to work flawlessly. However, for towing the airlifts do not do any weight distribution. For that you need a weight distribution hitch. I am just using my air lifts for now, but considering a weight distribution hitch. Even with that would still need the airlifts for heavy loads.
Sierra K.
8/27/2021
Thank you for your review. We cannot accept returns after 60 days. This is a manufacturer warranty issue and you must contact them at their number of 800-248-0892.
Alex W.
6/24/2020
We leave them aired up all the time, and the ride is just fine. I check the pressures when we start to load the van, and they have held air for over a year. I am really REALLY glad I bought these, they offer a lot of peace-of-mind and there has been NO downside.
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Condition: Like New
Notes: May have damaged packaging or minor cosmetic blemishes.
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Big B.
8/3/2021
Still working great no leaks would buy againfor any senna rear with coils...