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Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers - Rear Axle

Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers - Rear Axle

Item # AL88391
Retail:$952.68
Our Price: $513.93
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5,000-lb Capacity. LoadLifter 5000 Ultimate air springs have internal bumpers, so you get the adjustable load support of air springs and the comfort and reliability of jounce springs. Jounces also work as a fail-safe if air springs lose pressure. Great Prices for the best vehicle suspension from Air Lift. Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers - Rear Axle part number AL88391 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Air Lift Vehicle Suspension - AL88391

  • Air Springs
  • Rear Axle Suspension Enhancement
  • Heavy Duty
  • Air Lift

5,000-lb Capacity. LoadLifter 5000 Ultimate air springs have internal bumpers, so you get the adjustable load support of air springs and the comfort and reliability of jounce springs. Jounces also work as a fail-safe if air springs lose pressure.


Features:

  • Hybrid spring system combines the adjustability of air springs with the reliability of jounce-style springs
  • Air bags reduce the strain on your rear suspension, increase safety, and compensate for uneven loads
    • Level your vehicle front to back and help maintain safe headlight aim
    • Adjust independently for side-to-side leveling of off-center loads
    • Improve steering and braking performance
  • Jounce spring inside each air spring helps to improve ride comfort, reduce sway, and help with cornering
    • Engages at lower air pressures to better absorb road shock and minimize bottoming out
    • Provides support progressively - the more you load the springs, the stiffer they become
    • Lets you temporarily carry a load with zero air pressure in your springs
  • Quality construction for long-lasting spring life
    • 2-Ply, fabric-reinforced rubber air springs are durable
    • Air Lift's exclusive upper and lower roll plates protect air springs from damage, extending the life of the suspension system
    • High-strength Zytel nylon endcaps are lighter, stronger, and more corrosion resistant than steel
    • Urethane internal jounces require no maintenance and work well in hot or cold temperatures
  • Designed for heavy-duty applications such as 1/2-ton, 3/4-ton, and 1-ton pickup trucks, motor homes, and commercial trucks
  • Mounting brackets and hardware are included for installation
  • Manual inflation valves and air lines are included
    • Manual valves are typically mounted on bumper for easy access
    • Compressor system with in-cab gauges (sold separately) can be added to monitor and automatically adjust air pressure
  • Made in the USA


Specs:

  • Load-leveling capacity: up to 5,000 lbs
    • LoadLifter 5000 Ultimate springs will not increase your vehicle's weight-carrying capacity. Do not exceed the manufacturer's recommended weight limit.
  • Adjustable air pressure: 5 psi - 100 psi
  • Lifetime warranty
  • 60-Day satisfaction guarantee


Note: When servicing your truck with Air Lift air springs installed, if the truck is lifted by the frame, the air must be let out of the springs. And if the rear of the truck is lifted during service, then it must be supported by jack stands to avoid damage to the air springs.


Get the Best of Both Springs

The air springs and jounce springs in this system work together to give you the best ride whether your truck is loaded or unloaded. Air Lift's LoadLifter 5000 Ultimate air springs have internal urethane foam jounces that protect the air springs and provide added ride comfort when your air pressure is low. The jounces also allow you to temporarily carry a load if the air springs lose air pressure. This gives your 1/2-ton, 3/4-ton, or 1-ton pickup, motor home, or commercial truck air springs that are easier to maintain.


Air Springs Level Your Load

Carrying heavy cargo in your truck bed or trailer puts extra stress on your truck. Your brakes erode faster, your tires wear unevenly, and handling suffers severely. When towing, you might also experience excessive sway, bottoming out, and even inaccurate and unsafe headlight aim.


By pairing your existing suspension with LoadLifter 5000 Ultimate air springs, you can seriously beef up your suspension, ensure equal load distribution, and get the support you need. The springs provide up to 5,000 lbs of load-leveling capacity (depending on the weight-carrying capacity of your vehicle) and distribute the weight of your payload to all 4 wheels. As a result, the stress on your factory suspension is significantly reduced. LoadLifter's air bags are adjustable from 5 to 100 psi for precise support, and they can be inflated equally for front-to-back leveling or independently of one another for side-to-side leveling.


The air springs are made of high-quality, 2-ply, fabric-reinforced rubber. Most air bags lose air at the ends where the bag is enclosed with steel caps. These caps can rust and corrode over time, creating small holes. But the endcaps on Air Lift air bags are fashioned from corrosion-proof Zytel nylon, a material that is both stronger and lighter than steel, ensuring that the air bags won't lose air.


Roll plates on Air Lift 5000 Ultimate air spring

The air bags also have Air Lift's exclusive roll plates, which protect the air springs and beef up their load capacity. These sturdy plates help guard the springs from moving parts under your vehicle that might puncture the air bags. The plates also provide a larger surface area for each spring to roll on. The extra surface area gives you a higher spring rate at a lower air pressure, resulting in a better ride.


Built-In Jounce Springs Add Control and Comfort

Air Lift 5000 Ultimate air spring with jounce spring inside

The closed-cell urethane jounce spring inside each air spring gives you a more stable, comfortable ride. Each jounce acts as an overload spring and engages when your current air pressure level isn't enough to support your load. So on a rough road, the springs will kick in if needed to absorb bumps and shocks and help you to avoid bottoming out. When the jounces support a load, they adjust progressively - the more weight you pile on, the stiffer they become. The urethane material engages more smoothly than rubber jounces so you get a less jerky ride.


Because these jounces are taller than your factory jounce bumpers, they engage sooner than your factory jounces would to provide better support. And if the LoadLifter 5000 Ultimate air springs have insufficient or zero air pressure, the internal jounces will help to temporarily support your suspension and protect it from damage until you can repair or adjust the air spring system.


Easy Installation

This system installs with the included brackets and hardware. Just mount the springs, inflate them, and ride. To inflate the LoadLifter springs, you just have to pump in air through the inflation valves. A line kit is included with the springs so that you can install the manual inflation valves (one for each spring). These are typically mounted on the bumper but can be installed anywhere that is easily accessible. If you want to make the springs even easier to use, you can get a compressor and gauge system (sold separately) that allows you to monitor and adjust the springs from the cab of your truck.


Lifetime Warranty

Along with a lifetime warranty that has no mileage restrictions, Air Lift offers a 60-day satisfaction guarantee. Just install and use LoadLifter 5000 Ultimate springs for 60 days, and if you are not satisfied at the end of this time, you can remove and return them for a full refund.



88391 AirLift Load Lifter 5000 Ultimate Air Bags with Internal Jounce Bumpers - Back Axle

Installation Details AL88391 Installation instructions

This Product Fits The Following Vehicles



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Customer Satisfaction Score:


Customer Reviews

Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers - Rear Axle - AL88391

Average Customer Rating:  4.7 out of 5 stars   (852 Customer Reviews)

5,000-lb Capacity. LoadLifter 5000 Ultimate air springs have internal bumpers, so you get the adjustable load support of air springs and the comfort and reliability of jounce springs. Jounces also work as a fail-safe if air springs lose pressure.

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Installed on a 2024 GMC Sierra Crew SLT with rear poly mono springs. This worked great and the install was easy. It took me about 2.5 hours on a 4 post lift, but you could do it in the driveway if you needed to. I reached out to airlift to make sure it would work on a vehicle with mono-springs and they were not 100 percent sure if it would. So I took a chance and it worked flawlessly!



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The product was as advertised. Instructions were provided and fairly straightforward. Be sure to jack the frame up high enough to access the area where the airbags go. Be careful when inserting the clips into the frame. I had one that slipped and shot into the inside of the frame and thankfully I had a long handled magnet and retrieved it. One recommendation I have is for the manufacturer to preassemble as much of the product as possible which would minimize the chance of parts being assembled incorrectly. I mounted the valve stems on the bumper on each side of the license plate.



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This product was fairly easy to install. The biggest problem I faced was a suspension bracket on my passenger side next to wear I installed that airbag. It was not mentioned in the video instructions. I really struggled getting my tools and hands on such a tight spot. After an hour, everything was ready to roll.



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Slight pain in the ass to install on a 2020 ram 1500, but so worth it. Hauled home a 3500 lb dump trailer today with 40 psi in the bags and it rode like dream, rear end didn’t even sag. Can’t wait to see what it does fully loaded



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The air lift is of high quality. I was able to lift my 2023 Thor Sequence RV 2.5 inch with the air bags. I needed that to get over a hump in my drive way. I loved the fact I did not need any additional parts for installation. I would highly recommend this product. It will be very useful for leveling at camp sites you can level one side at a time.



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I purchased the wireless 5000 helper system for my new Toyota Tundra. I pull a 21ft boat and a 33ft travel trailer. The Tundras rear suspension set down a little more than i liked. So, i researched helper kits and with "etrailer's" assistance i decided on the above mentioned system. I installed myself within a couple hours and have used for about 1 year now. i haved had great service from "etrailer" and am extremely happy with the product. Have had no issues at all with the product and will use again on my next truck. Thanks



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Ordered the airbags on Monday. Received them on Friday. I have the same week. Great customer service.



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Adds the leveling needed when I tow our 5th wheel. I have used these before on another brand of truck and would highly recommend them! Etrailer is always a pleasure to do business with. Shipping is always on time if not before I expect it.



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This was installed on a 2021 Chevy Express 2500 van conversion by Explorer Conversion Vans. Explorer installed an Eaton rear suspension and it was not up to the task of a heavy conversion van. I think the air bags help but I will need to upgrade the shock absorbers to eliminate some of the bounce from the air bags. There were three primary issues with the installation:

1) The parking brake cable bracket is in the way and has to be cut off the axle. I attached the parking brake cable clamp to one of the Air Lift bolts using a nut. This is not something every at-home installer can do.
2) The air hose is barely long enough. I specifically asked how long the hose is because I wanted to route it where the future compressor will go and was told there is enough to go around the entire vehicle. That is incorrect. I will have to replace the hoses at my cost when I upgrade to the onboard compressor system.
3) The etrailer video says to drill the mounting holes to 5/16" diameter. The 3/8"-16 bolts immediately stripped out. I should have drilled the holes to 9/32" diameter.

I have bought a lot from etrailer and I will purchase from them again. Most of my issues stem from the poor design and instructions of the Air Lift product. For example, it doesn’t say anywhere on the box or product literature how much air hose is provided.



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The kit got here and it was in good shape and everything that was supposed to be there was there. Haven't tried it out yet but I have no doubt that it's going to work perfectly. The staff was very friendly and a very helpful in picking out the right system for my motorhome, I will add more photos when I get the project done plus a video.



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They were easy for any handy guy to install . It took about 2 hrs. They lifted my 2500 ram to sit level with my 37ft. 5th wheel. I even leave them as is, when I'm not hooked up, and don't notice a difference. I ran two separate lines to near my rear license plate, no compressor. I'm glad I didn't spend that extra money. You rarely change the pressure, and it's so easy to do.



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So I installed the airbags in my drive way. It wasn't anything difficult. My truck had some ass drag to being with but I primarily purchased the airbags because at the time I was trailering a boat I bought. SO I needed them to level my ride while towing. I currently run the bags at 50 psi and 60psi while towing. They have worked perfectly and added comfort to my ride as well. I noticed more of a bounce in the rear of the truck so I up graded my shocks to bilstien 5160 rear shocks. Problem solved.



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Wish I would have ordered the one with the airpump . Works great on my ram 2500 pulling 40 foot fifthwheel



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I was able to install this kit on my 2021 GMC Sierra 1500, following the etrailer video. The video was absolutely essential from my experience. Removing the spare tire and heat shield were necessary to have full access to the area. Jacking up the rear of the vehicle with a floor jack was also necessary. I didn't have any power tools. Breaking a few bolts loose took a pipe extension over the wrench handle. All parts fit well. The air lines went in easily. I routed them to the bottom of my license plate holes. The air springs definitely puts my vehicle back to its normal level after hooking up my 7,500 lb. RV trailer. Everything feels solid when towing. Very pleased with this product.



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The airlift bags are really nice quality! I would say they could go into a little more detail in the instructions for putting the brackets together for the diy people.



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Very Nice! We watched the video on YouTube, very helpful! I ordered the additional Tee. So, as to only have 1 air inlet, under the rear bumper. Have the DeWalt 20 volt compressor with the digital air pressure display ( which will air up 10 ply tires) and it’s always on the truck. That way I didn’t spend extra money or time installing an onboard compressor or pairing Bluetooth “Technology” and no remote to lose.



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Fit well. Very snug. Slight glass vibration at speed but not bad. Happy with product.



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These air bags made a big difference in my truck and answer to my problem of hauling an atv in the bed. Notice the difference in the space between the bed and wheel between the two pics. The kayaks don't add thst much more weight. The air held for a five hour drive.



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Tow 11,000 lb. FW witha Ford F250. Love the feel of the Air Lift airbags, and the insurance of the internal jounce bumpers if needed. Over 5,000 miles logged, and still going strong.



by:

Product was delivered quickly. Took about 1 1/2 to install these air bags. The instructions were very helpful and precise. Ran the air fittings out at bottom of bumper in the black trim next to hitch. I have had these on for about 3 weeks and just went camping. The bags help keep my 40’ travel trailer riding smoothly and gave the support that was needed being that my camper is tongue heavy. Would definitely recommend these bags. I would also recommend etrailer because they was very helpful with my questions and got the product out quick.



by:

The kit works very well, the driver side install took 4/5 hours with all the extra hoses gas lines, vent tube mount in the way. Had to cut a extra bracket which was under the bump stop and went up the side of the frame, wouldn't let the air bag bolt move over far enough to align with the old bump stop hole. Once that was removed everything was great. The driver took just over an hour. Finding a good location for the airlines still haven't they are in the fender area tucked away for now. They work great, now just seeing what is the best psi for my van. Didn't install a compressor maybe in the future I carry a compressor for work anyway so not hard to add air if needed. Thanks would recommend using these. Plus cheaper and easier that buying new springs and replacing them.



by:

This is a terrible product. the first ride on these bags, i knew they wouldn't work. the ride at lowest 5psi is way too stiff. it gives me headache to drive my truck now with the ride stiffness. I have to ease over speedbumps to avoid whiplash. My truck is aweful to ride in now. Etrailer was unhelpful to return this product and they really shouldn't be selling it. 2008 toyota Tundra 4x4TRD. I have read the Firestone Ride Rite are better riding bags. i hate to lose $500, but I need my truck ride back.



by:

Kit works great easy to install. Had some trouble with the T connectors leaking a bit. Works great with trailer hooked up.


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Show More Reviews

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    With you slide in truck camper causing the passenger side of your 2022 Ford F-350 Dually 2WD to sag more than the drivers side, the Air Lift LoadLifter 5000 Ultimate Air Helper Springs # AL88391 are going to be the best option for you. The air bag helper springs will allow you to use different air pressures in each bag to give you the most level ride possible. The Air Lift WirelessAIR Compressor System # AL74000EZ will allow you to adjust the air pressure to each spring from either the...
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  • Recommended Air Helper Spring Kit For 2018 Ford F-250 Towing 35' Trailer
    I would be happy to recommend an air helper spring kit for your 2018 Ford F-250 with the 6.2L engine. If your F-250 is a 4WD model I highly recommend the Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers # AL88399 which offer 5000lbs of load leveling capacity and have an internal jounce bumper that will support the load if there is ever a failure with the bag. If you have a 2WD model instead you would need the # AL88391 instead. Both of these kits will...
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    For the highest capacity rear air bags for your 2022 Ford F-250 Super Duty 2-wheel drive, we have two options: the Air Lift LoadLifter 5000 # AL57391 and the LoadLifter 5000 Ultimate # AL88391. Both of these systems offer your vehicle 5,000 pounds of load-leveling capacity, which is the highest capacity we have. Both of these models are compatible with your 2-wheel drive. The difference between these two systems is that the Ultimate version has an upgraded black-powder coated roll plates...
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  • Can I Use Airbag on a 2020 Ford F-250 2WD with the Factory Prep Package
    The only airbag kit we have that will fit your 2020 Ford F-250 is the Air Lift LoadLifter 5000 Air Helper Springs part # AL57391 for standard or part # AL88391 for ultimate. The ultimate version has an internal jounce spring which lets you temporarily carry a load with zero air pressure in your springs. The Firestone Ride-Rite Air Helper Springs part # F95FV will not work for you because the airbag installs on the outside of the frame rail which is currently occupied by the factory prep...
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  • Air Lift Airbags and Compressor Kit Compatible with a 2018 Ford F-350
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Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Mike L
Expert Research:
Mike L
Employee Joshua S
Video by:
Joshua S
Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Brent H
Installed by:
Brent H
Employee David F
Installed by:
David F
Employee Mary K
Written by:
Mary K
Employee Wilson B
Updated by:
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