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5,000-lb Capacity. When the load gets heavy, your truck shouldn't feel like it's fighting you. These air bags help you stay level and in control so you can tow with confidence and handle heavy loads without second-guessing your suspension.
When the load gets heavy, your truck needs more than just rear springs hanging on for dear life. Alpha HD air springs add up to 5,000 lbs of rear axle support, keeping your truck steady even when the trailer is loaded, the bed is packed, and the miles are long. No more rear-end sag throwing off your braking and steering, or headlights pointing into the sky. With air bag support underneath, you keep control of your ride even when you're towing a travel trailer or moving a serious payload.
Every load is different, and this system adjusts to match. Alpha HD air springs let you fine-tune ride height and firmness with air pressure from 5 to 100 psi. When carrying heavy weight, add air to level your suspension and maintain steady handling. Running without a load? Drop to the minimum pressure for a smoother, more compliant ride without stiffness or bounce. Manual inflation valves are included, so tuning your setup for each trip is straightforward and dependable.
Air bags are only as strong as their weakest link. That's why Alpha HD bags are reinforced from end to end with heavy-duty end caps, 20 internal support wires, and powder-coated steel brackets. Add corrosion-resistant hardware and thick roll plates, and you've got gear that holds up to real-world hauling through heat, cold, salt, and slop.
Adding serious load support shouldn't mean losing a whole weekend. The precision laser-cut brackets are designed to bolt cleanly to your truck's existing mounting points with minimal drilling. Just smart engineering that fits the way it should, which is perfect for the DIYer. Manual valves mount through license plate fastener holes or a location of your choosing (which may require drilling). With high-quality fittings, pre-bent brackets, and mounting hardware included, you'll be back on the road in just a few hours without a trip to the fab shop.
This kit is designed to work with your setup today and wherever your upgrades take you tomorrow. You can inflate manually with standard air valves right out of the box, no extra parts needed. Already have an onboard compressor? The Alpha HD system connects easily to most existing setups. Planning for an in-cab wireless controller down the road? No problem. The foundation is already built in, making it easy to expand your control options when you're ready.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everybody. Andy here with etrailer.com. Let's take a real quick look at this Pacbrake Alpha HD rear axle double convoluted airbag suspension kit. Now this kit has been designed to work with your 2010 to 2020 Dodge RAM 4500 and 5500 cab and chassis. Now on custom fit parts such as this kit, it is recommended that you use our vehicle fit guide here at etrailer.com. Simply enter the year make and model of your vehicle, and if it asks you any other additional questions, answer those and our fit guide will confirm if this kit will work for you or if we have something comparable that will work for you.
Now, when you're hauling equipment, towing a trailer or making deliveries with a loaded flatbed, factory leaf springs can only do so much. These air springs are going to add up to 5,000 pounds of rear axle support, giving your Dodge Ram 4500 or 5500 cab and chassis the muscle that it needs to stay level, controlled, and capable, even when you're maxed out and running long hours. With your rear end held up properly, brakings are gonna stay sharp. Steering is going to remain predictable, and your headlight aim is, your headlights are gonna aim where they're supposed to, not into the trees or up to the sky. So whether you're pulling equipment out of the yard at dawn or rolling home after dark, these airbags are gonna help your truck carry the load with confidence.
Now, as you well know, no two jobs are gonna be the same and neither is every load. That's why these air springs are gonna let you dial in the pressure from five to 100 PSI, depending on your, on what your truck's carrying. So you can fill them up when the trailer's loaded or the service body is packed to the rails and you can let some air out when you're driving as light or empty. These manual inflation valves are gonna make adjustments fast and straightforward, so your suspension's always gonna match the weight on board. What that means for you is a smoother ride for you, for the crew, and more control behind the wheel and less wear and tear on your truck no matter what the day throws your way.
But commercial trucks don't get pampered. They run in the cold, the mud, the salt, and the heat, sometimes all in on week. That's why these air springs are built with 1" thick corrosion resistant end caps. The bags themselves are reinforced with 20 internal support wires and they're protected by these heavy duty roll plates. They handle real world loads.
These also feature these really great powder coated steel brackets that are gonna stand up to rust and grime. So you're gonna be able to keep moving through the worst conditions without worrying about what's happening under the frame. And then this also is going to include all of the hardware that you need to get these secured and mounted into place. Now, I don't have all the hardware laid out here on my table. I just have the bags put together loosely with the brackets and the roll plates. So I thought it'd be better for you just to see a photo of all the hardware that's gonna be included with this kit. So you're basically gonna get everything that you need minus the tools to get this installed into place. Now, these precision laser cut brackets are designed to bolt cleanly to your truck's existing mounting points without welding or drilling to your frame. And what's great about this kit is that it's designed to work with your setup right now and wherever your upgrades may take you down the road. So again, you're gonna be able to inflate manually with the standard air valves right outta the box, no extra parts needed, but maybe you already have an onboard compressor. If so, that's great, because these are gonna connect easily to most existing setups. And then maybe you're planning for something like an in cab wireless controller down the road. That's not gonna be a problem either, because the foundation is already being laid for those future upgrades. So you're gonna be able to easily expand your options when the time comes. Now, as I mentioned, these are gonna give you up to 5,000 pounds of additional load leveling support, but be aware of the fact that these bags don't actually increase your truck's weight carrying capacity. So you do wanna make sure that you're not exceeding your manufacturer's recommended weight limit. If you do pick this kit up, we want to hear back from you regarding your experiences with getting this installed and using it. So you can share your experiences with us by dropping a comment or leaving a review on this product page. And if you happen to have any other additional questions, don't hesitate to reach back out to us. We do wanna make sure that you're getting exactly what you want and need. Well, that's gonna wrap up our quick look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.
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Lazer S.
7/20/2026
Glad to hear the install wasn't too bad, Dan! Sorry to hear it stiffened up you unloaded ride though. That is one of the only downsides with adding something like this to a Ram truck. They are known for their very nice ride and once you add anything for support when towing, it does inevitably mess with it. What are you towing?