To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
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 grow with your upgrades tomorrow. You can inflate manually through the included 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.
Want to step up to an all-in-one kit with air bags, compressor, and wireless controller in one package? We've got you covered with Pacbrake's On Demand Kit (PB69YV).
Looking for a complete system with onboard air storage too? Upgrade to one of the "Ultimate" Kits (PB52YV) or (PB32YV) with air bags, compressor, wireless controller, and a 1/2-gallon or 2-1/2-gallon tank for added versatility.
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 for your 2019 and newer Chevrolet Silverado and GMC Sierra 1500 with the two and four-wheel drives. And this kit is going to work with all truck bed lengths. However, this is not going to fit models equipped with the adaptive ride control. If you have the AT4 or Trail Boss four-wheel drive models, you should use the kit that you see there on your screen instead, identified by the model number that you see there, which comes with the required two-inch spacer.
On custom fit parts such as this kit, I do recommend taking advantage of our vehicle fit guide here at etrailer.com. Simply input the year, make, and model of your vehicle and our fit guide will confirm if this will work for you or if we have something comparable that will work for you. So when the load gets heavy, your truck is going to need more than just those factory rear springs hanging on for dear life. These airbags are gonna give you up to 5,000 pounds of rear axle support, keeping your truck level and steady, even when the trailer is loaded and the bed is packed and the miles are long. So you're not gonna have to worry about any more rear end sagging, throwing off your braking and steering or your headlights pointing up to the sky.
Every haul is different, of course. That's why these air springs give you full control over your ride height and firmness, with adjustable air pressure from five to 100 PSI. Hauling a fifth wheel or a full bed of gravel, then you can just crank up the pressure in the bags. And then when you're unloaded and you're heading home, you can just drop that pressure back down, giving you a softer ride. With the manual inflation valves included, tuning your suspension for the day's work is gonna be very easy, very straightforward.
Now if extreme hauling does demand extreme durability, these springs are built with one inch thick corrosion-resistant end caps, which you can't see because I do have them kind of loosely assembled, and I've got the roll plates here on the top and the bottom. But these also are reinforced with 20 internal support wires for maximum strength under that heavy load. And then these roll plates are heavy duty. They are designed to protect the bags from chafing and help extend their lifespan. And then these custom fit powder coated steel brackets are going to resist rust and corrosion, road salt, all those rough seasons, such as if it's a bitter cold or if it's scorching heat, or mud-slicked job sites.
This system is designed to outlast whatever the road is going to give you, mile after mile and load after load. Now I do wanna point out that with Pacbreak, the word that comes to mind is premium. I have dealt with in the past, with other manufacturers, airbag suspension kits. They all have their strengths, but I'm just immediately impressed by the quality of the materials that, especially the materials used to construct the bag, the powder coat finish on these brackets, everything with this kit just speaks of a premium quality to me. So if you're looking for a top-of-the-line air suspension kit, in my opinion, Pacbreak is going to be the way to go. These precision laser cut custom fit brackets are designed to bolt cleanly to your truck's existing mounting points without welding or drilling to your frame. You're just, of course, gonna use the included hardware. And so this kit is designed to work with your setup today. And wherever your upgrades are going to take you tomorrow, you're gonna be able to inflate them manually with the standard air valves right out of the box, no extra parts needed. And then if you already have an onboard compressor, these are gonna be able to connect easily to most existing setups. And then if you're planning for an in-cab wireless controller sometime down the road, that's not gonna be a problem, because with this kit, you're building that foundation so that you can expand in how you're going to control these down the road. So again, the load leveling support's gonna be up to 5,000 pounds, but just be aware of the fact that airbags do not actually increase the weight carrying capacity of your truck. 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 would love to hear back from you regarding your experience with the installation and the operation of this kit, and you can do that by dropping a comment or leaving a review on this product page. And if you have any other additional questions, don't hesitate to give us a call. We'd love to hear from you and help you out further. 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.
Customer Satisfaction Score:
93% were satisfied with this product
7% of customers were not satisfied
Ratings & Reviews
Easy instal and has worked perfectly.
nick was very helpful everything was as expected
The product is a great product. After installation was completed and the air added to the air suspension, it raised the rear end of the van about 2-3 inches.A very nice improvement.
Installation instructions definitely need better quality diagrams.
Easy to install and work just as I had expected. Great finish on brackets and quality hardware. Easy to follow instructions. Highly recommend these airbags!
The 2" spacers are definitely not needed for a Trail Boss. I could barely get them in, and now the ride is super stiff. Now I have to get back under the truck and remove the spacers. Not looking forward to that. It was very difficult installation, for no reason.
Looks great. Thanks
I put them to use today and was very happy with the ride and stability while towing my camper.
Love the product
The directions could’ve been a little more detailed
Put about 1800 miles on these last weekend. Was picking up a car that's heavier than my normal race car on the ramp truck, so I wanted to give the truck a bit of help. Good news, it worked well. Truck rode beautifully, loaded or unloaded.
The instructions could be a bit more clear, in regards to the clinch stud. I had that on backwards at first because of how things appeared in the picture. Also, I know most things are DIY but installation was about 80% assembly, 20% actual install. If these came already assembled, it would have saved a lot of time!
These fit absolutely perfect. Easy install help keep my truck level when connected to my fifth wheel.
Simple to install, did it without pulling the tires and wheels I seen no need for that, It took me a total of 3 hrs. to install in my driveway.
What a difference the air bags make when towing a camper. Installation was easy, instructions were well written.
The air bags were very simple to install but the u bolts for my gooseneck mount interfered with the air bag mounting
Good quality product. For my 2018 1500 Silverado it was a little difficult to get the U bolt over the frame but under the hard lines running on top of the frame in that area.
Aluminum ends, brackets, and even packaging was all exceptional and part of the reason I choose these. Haven't trailered anything yet but upon initial install no noticeable difference ride difference running 10 psi on a F250.
Both of the fitting leak where they swivel. Had to take everything back off. Not my first time installing bags but First time with this brand and will be the last. Etrailer won’t make it right and having me go though pacbrake. Waiting on email to get process started. They Don’t seem to be in any hurry. Will try and source fitting local so I can get this back together. Shane on you etrailer. I ordered from you and shipping was slow not knowing it was directly coming from manufacturer.
Went in easy enough, better than I thought. Ride without trailer attached is good. Have not hooked up trailer yet
Easy to install with the rear tires off, did one side at the time with a single jack and two jack stands. The towing of our fifth wheel is much better, much less chucking and more directional stable.
I decided on the pack break airbag due to my truck stock height. With a limited amount of room, there is between the axle and the frame they fit perfectly. They almost work with no air in them at all. I figure with a little bit of pressure. It’ll hold all the weight and still ride well I had them on the truck completely functional in an hour and a half, and that’s even with one bag, assembled incorrectly and reassembled correctly and installed so even with that little mistake it was still an hour and a half installed with the wheels off highly recommend this kit looks good. Seems to work well and fits in the tight space stock truck Cuz.
I like these bags. This is my 3rd set of air bags but my 1st set of PACBRAKE I have owned and they are the best. Metal where others are plastic. Powder coated instead of paint that rusts off. nice hardware instead of crummy allan bolts that can't easily be removed. The bracing is much better too. They are by far higher quality than the firestone. Installation is about the same but they use stainless air fittings instead of plastic like the other guys. The ends of the PACBRAKE are machined aluminum. My Airlifts brand were plastic with inserts that broke out.(see pic) I havent had the chance to use the new PACBRAKE under tough conditions but the hardware and Materials they are made of are superior to the other brands.
Worked out great
Great kit. Great quality. Easy assembly. Would’ve given 5 stars except for the J-Hooks. Having the end user cut them off creates an opportunity for someone to mess up. They could easily be made the correct length without causing install issues.
Very well built brackets, installation was as explained in the instruction. Happy Camper!
Worked well when pulling trailer. Kept vehicle and trailer level. Without trailer seems to creak and groan more than I thought it would.
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