To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Demanding trailer, camper, or payload weight can leave your truck squatting and less controlled. These air springs add up to 7,500 lbs of leveling support to reduce sag, sway, and bottoming, while internal jounces let you run 0 psi unloaded.
Your truck can feel composed empty, then change quickly once substantial pin weight, a slide-in camper, or a heavy work payload settles onto the rear suspension. The two adjustable rear air springs provide up to 7,500 lbs of load-leveling support to help bring a sagging rear back toward normal ride height while reducing sway and bottoming under load. Instead of treating that capacity as a target, you can tune the air pressure to the weight your truck is actually carrying.
A truck built for serious towing or hauling may still spend plenty of miles without that weight on the rear suspension. Internal jounce bumpers let you increase air pressure when a substantial load calls for more support, then reduce the air springs to 0 psi when the extra weight comes off. Those internal jounces protect the air springs against bottoming when suspension travel is used up, so you don't have to maintain air pressure simply to protect the bags during unloaded driving. The result is adjustable support that can work around both sides of your truck's job instead of treating every mile like a loaded one.
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 and checking tire-to-frame clearance before removing the factory jounce bumpers, with rear-wheel removal optional if you want more working room. The air spring assemblies mount between the frame and axle using brackets that nest around the existing jounce-bumper retainers up top and axle straps below, with the brake-line hardware temporarily moved and then reattached to the new lower brackets for proper clearance. Once the springs are positioned, aligned, and torqued, you'll install the passenger-side exhaust heat shield, then route the braided stainless steel air lines away from brake lines, fuel lines, wiring, and other potential trouble spots, leaving enough 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 when your truck regularly switches between demanding loads and unloaded driving. You can add a Pacbrake Bravo Wireless Air Control Kit with XD Compressor (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.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everybody. Andy here with etrailer. Let's take a quick look at this Pacbrake Alpha XD Pro Rear Axle Airbag Suspension Kit with internal jounce bumpers and stainless steel hardware. Now this has been designed to fit your 2020 to current Chevrolet Silverado and GMC Sierra 2500 and 3500, both the two-wheel and four-wheel drive models. Now on custom fit parts such as this kit, I do recommend taking advantage of our vehicle fit guide here at etrailer. Just pop in the year, make and model of your vehicle, answer any other questions that it might have for you.
And our fit guide will confirm if this kit will work for you or if we have something comparable that will work for you. So as you know, when the load gets heavy, your truck is going to need more than just your rear springs hanging on for dear life. These airbags are going to give you up to 7,500 pounds of rear axle support, keeping your truck level and steady even when the trailer is loaded, or the bed is packed, or the miles are long. So no more rear sagging, throwing off your braking or steering, and no headlights pointing up into the sky anymore. Bottoming out just doesn't feel rough.
It can actually wreck your airbags. That's why this system does include internal jounce bumpers inside of each bag. So even with no pressure, your suspension has a built-in safety net. So I have a cut out there showing you, just giving an example from an airbag, what that internal jounce bumper is going to look like inside. So even even when you run at zero PSI when unloaded, these are going to be fine because of those internal jounce bumpers.
You're not going to have any harsh rebound, just that smooth factory style ride. And this kit includes stainless steel hardware. You're going to get these stainless steel graded lines. They're going to be more durable and resistant to wear compared to standard rubber lines. You're also going to get these stainless steel roll plates, which are going to help protect the airbags along with Schrader valves.
So you're going to be able to easily inflate or adjust the air pressure using the standard air source. So on your screen, I'm actually showing you all the hardware that you're going to be getting. I do not have the room on my tabletop for that. So the top picture there is going to be the kit with the standard hardware. You're going to get that, but then the bottom photo is also the stainless steel hardware that's been added to this kit. So this is a stainless steel hardware upgrade kit. So I just wanted to show you all the hardware that you're going to be getting. Again, that stainless steel hardware is at the bottom. So stainless steel, as you know, is gonna resist that rust and corrosion much better than standard materials. It's also stronger and less prone to damage, so you're less likely to deal with leaks or wear over time. But each haul is gonna be different. That's why these airbags give you full control over ride height and firmness with adjustable air pressure from five to 100 PSI. So if you're hauling a fifth wheel or a full bed of gravel, you're gonna be able to crank the pressure up, and then when you're unloaded and heading home, just drop it back down for us off to ride. And then with the manual inflation valves included, tuning your suspension for the day's work is gonna be straightforward. Now these springs, in my opinion, are some of the best air springs I've ever seen. They're premium. They're built with one inch-thick corrosion end caps and reinforced with 20 internal support wires, giving you that maximum strength under load. Pacbrake is actually my favorite airbag system, just because of the fit and finish. And these brackets are precision laser cut brackets with a great powder coat finish, so they're gonna bolt cleanly to your truck's existing mounting points without welding or drilling to your frame. Now I mentioned that this is going to give you up to 7,500 pounds of load leveling support, but just be aware that these do not 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. Now, one final note, if you are looking for help with installation, on this product page, underneath the photo section, there is a link that will take you to our installer locator. Click that link, answer the questions that it has for you, and our locator will find an installer in your area that Etrailer has partnered with to do the work for you if you prefer. But if you happen to have any other questions, don't hesitate to reach out. We do want to make sure that you're getting exactly what you need. Well, again, my name's Andy. Thank you for joining me.
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