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Heavy trailer, camper, or bed loads can leave your truck squatting and less controlled. These air springs add up to 5,000 lbs of leveling support to reduce sag, sway, and bottoming, while internal jounces let you run 0 psi unloaded.
Typical Alpha HD Pro installation shown. Vehicle-specific brackets vary by application.
When trailer weight, a slide-in camper, or a heavy bed load settles your truck onto its rear suspension, squat and extra body movement can make the truck feel less controlled. The two adjustable rear air springs add supplemental support to help reduce sag, sway, and bottoming while letting you tune the suspension to the weight you're carrying. With up to 5,000 lbs of load-leveling capacity, you can add only the pressure the load calls for instead of treating maximum pressure as the default. Your truck can sit closer to level and remain more controlled while carrying or towing substantial weight.
A truck that tows one day and runs empty the next doesn't need the same rear-suspension support all the time. Internal jounce bumpers let you add air when your trailer, camper, or cargo is aboard, then reduce the air springs to 0 psi once that load comes off. Those internal jounces also protect the air springs against bottoming when suspension travel is used up. You get the support your truck needs under weight without having to keep air in the bags simply to protect them when you're driving empty.
Suspension hardware lives where road spray, dirt, and weather reach it, so material choices matter underneath your truck. This kit uses braided stainless steel air lines along with stainless steel fittings, Schrader valves, roll plates, and mounting hardware to add corrosion resistance throughout key parts of the system. That extra durability is focused where it matters, helping the hardware you rely on for load support and pressure adjustment stand up to the environment beneath a working truck.
You'll start by measuring your truck's stock ride height before raising the rear, removing the wheels, and taking out the factory jounce bumpers. The upper brackets mount to the frame using the existing jounce-bumper locations and hardware fed through openings already in the frame, while the air spring assemblies sit over the leaf springs and clamp around them from below. Once everything is positioned and torqued, you'll route the braided stainless steel air lines with enough clearance and slack for suspension movement before mounting the Schrader valves where they're easy to reach. Adding air bags is a job experienced DIYers can handle, but if you would rather leave it to a professional, we can help you find an installer near you.
The included Schrader valves give you everything you need to adjust the air springs manually, but pulling out an external compressor can get old if your towing or hauling setup changes frequently. You can add a Pacbrake Bravo Wireless Air Control Kit (sold separately) to adjust pressure from your phone, check live pressure, and save presets for loads you come back to regularly. Also, you'll be able to choose between filling both air springs together or controlling them independently when the load isn't even side to side. It's an optional upgrade, but one that makes the adjustable part of an air-spring system much easier to use regularly. And it's not the only solution available. There are a variety of compressor options from Pacbrake that might be the perfect fit for your setup.
Alternate Instructions
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everyone, Steve here with etrailer. Today we're taking a look at the Pacbrake Alpha HD Pro Airbag Suspension Kit for a 2015 through 2020 Ford F-150, both the two-wheel and four-wheel drive models. Folks, that being said, make sure you're double-checking the fit guide over at etrailer.com. Any things like year, make, and model, be sure you get the right parts the first time. Now at the back of your truck squats when you hook up a trailer or a load, or you have something heavy in the bed, these springs will give you a great way to add support and bring the truck back towards level. And they are adjustable so they can support your load as it changes.
Now you can run these airbags anywhere between five to 100 PSI in the bags themselves. So when the truck's unloaded, you can keep that pressure lower. Whenever you need to add air for a heavier load, you can simply add some air and stiffen that ride to be able to support that. Now what makes the pro version different is you have an internal jounces inside of this spring. You can't see it.
There's an internal jounce in there that's limited it from squashing all the way. You also have stainless steel braided airlines and stainless steel hardware as well. So this is the pro version, you're getting the best of the best, top of the line. And as you know, keeping the truck level is going to help improve steering, braking, and overall stability, especially body roll and prevent you from bottoming out and those kind of things as well. Now a kit like this is rated for 5,000 pounds of load level support.
The biggest thing to remember is this is not adding extra support to your truck's capacity. This is only supporting up to 5,000 pounds of weight. So it's not adding your vehicle's carrying capacity or anything like that. So just keep that in mind. Now with this kit, you can inflate each bag individually using the included manual inflation valves that come with the kit.
And there's going to be some other hardware that's not here on the table. I just threw this together loosely, so obviously everything here is just loosely put here just to give you a quick look at what these look like when they are installed. So keep that in mind, make sure you're double-checking the instructions and install everything according to the instructions, not necessarily what you're seeing here, just in case I got something backwards or you know what I mean As far as install, you don't wanna tackle it yourself, no problem. Scroll down below the product photos on the page. You should see something that says installation location tool or installation locator. Click on that link, give us your zip code and based on where you're located in the 50 states, we can pair you up with a trusted etrailer installation location near you. That's going to wrap up our look together. I'm Steven, thanks for watching.
Ratings & Reviews
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Kate F.
6/25/2026
I am very sorry to hear that these did not work for you John. I see on both the Pacbrake site and our site they are listed to not work with the Adaptive Ride Control, do you have that on your Silverado 1500? I am trying to get to the bottom of this so I can get the information corrected on both sites if needed.