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.
Heavy trailers, full beds, gear piled high, it all changes how your truck handles. Without the right support, you feel it immediately: sagging in the rear, poor handling, and a ride that gets unpredictable fast. This air bag system puts you back in control with up to 5,000 lbs of load-leveling support it helps reduce squat, improve steering response, and keep your truck stable when the weight stacks up.
Every haul is different, and your suspension should keep up. Alpha HD Pro air springs give you full control over ride height and firmness with adjustable air pressure from 5 to 100 psi. Driving unloaded? The built-in jounce bumpers let you safely run at 0 psi for a smooth, factory-style ride with no harsh rebound. Hooked up to a fifth wheel or hauling a bed full of gravel? Add air to level the truck and keep handling tight. With manual inflation valves included, tuning your suspension for the day's load is straightforward and dependable.
Air bags are only as strong as their weakest link. That's why Alpha HD Pro bags are reinforced all the way through with heavy-duty end caps, 20 internal support wires, integrated jounce bumpers, and powder-coated steel brackets. Toss in 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 DIY-er. 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 Pro 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.
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello everybody, this is Jeff at etrailer.com. Today we're gonna take a look at the Pacbrake Alpha HD Pro Airbag Suspension Kit with the internal jounce bumpers for your rear axle. It has a 5,000 pound load leveling capacity. Now this kit is a custom fit kit. It is designed to fit the 2001 to 2006 Toyota Tundra trucks, either two wheel drive or four wheel drive models. And on a custom fit part like this, I do like to recommend to go to our website, go to the fit guide, put in your year and model vehicle, and it'll show you if this will work for your application.
Now these airbags are gonna help you stay level, drive steady, and stay in control when you're hauling heavy loads. It will include everything laid out here on the table. Includes the air springs for the rear axle, the precision laser-cut powder coated steel mounting brackets. The grade five plated hardware. Comes with the air lines with the inflation valves.
Also comes with the push-to-connect fittings, and you can't see, we've installed them, but they're actually on the bottom here of each one. And it also comes with the installation instructions that'll show you how this all goes together. Now, basically when your trailer's loaded and the bed's full, your truck needs more than just the stock rear springs to stay level and in control. That's where these Alpha HD Pro air springs will add up, and they will add up to 5,000 pounds of rear axle support, helping your truck stay steady and secure through every haul. So whether you're pulling a fifth wheel, hauling materials, or towing equipment, the upgrade keeps you from sagging, squatting, or struggling for control.
Also, bottoming out does not just feel rough. It could actually wreck your air springs here. That's why this system includes the jounce bumpers we mentioned. They're inside each spring, so even with no air pressure, your suspension's gonna have a built-in safety nut. Basically, with those jounce bumpers, you can safely run at zero PSI when you're unloaded, which means no harsh rebound, just a nice smooth factory style ride.
Also, one load isn't like the next. That's why this Pacbrake gives you the freedom to adjust the air pressure from five to 100 PSI. So basically, if you need full support for a loaded trailer, you pump it up. If you're unloaded and heading home, just drop the pressure for a lot smoother ride. Again, with the simple manual inflation right out of the box, you get better ride quality and confidence no matter how much you're hauling. Basically, you just start with simple manual inflation and then you can expand your system later with onboard air or wireless controls. This Alpha HD Pro is designed to scale with your setup, so it makes future upgrades easy without redoing your whole foundation. Now, I did wanna zoom in. This isn't just light duty gear. These Alpha HD Pro springs right here are built with one inch thick end caps on each spring, and they use 20 internal wires in the spring itself to handle extreme loads without giving in. We mentioned the push-to-connect fittings. They are installed on the bottom here. You can see the one right here, same on the other one. It's where you connect your air lines to. Now they do use corrosion resistant parts, the powder coated brackets, the mounting brackets ensure that the system will hold up through road salt, rain, mud, and even over time. Also, this kit, it is designed to bolt to factory mounting points on your truck. This air spring kit installs with no drilling or welding to your frame. Now these air springs will not increase your vehicle's weight carrying capacity, so you do wanna make sure not to exceed the manufacturer's recommended weight limit. But that's gonna do it for the review on the Pacbrake Alpha HD Pro Airbag Suspension Kit with the internal jounce bumpers for your rear axle.
Easy to install and looks like it’s a high-quality product
haven't received or used it yet but pretty darn excited
The brackets are not built heavy enough
good product , good strong solid metal parts and heavy bags. The instructions were not so hot but was easy to figure out and quick delivery !
Easy install. Will pull trailer 3000 miles on vacation and see how it performs to Montana on highways and Forest Service roads.
Where to start I have 1500 pounds of tools in my 150 Chevy had them installed and it totally changed the ride and handling of the truck haven’t pulled anything yet but I’m amazed on how different the truck is already I Baught the ones with the bump stops in them the HD ones
I'm Vincent J,
My experience with loading my truck and seeing the difference with these air bags from PacBrake, it does look way better and the truck feels a bit more stable running atspeed limit (65mph) after that it does feels jumpy if you go over potholes, but overall I'm happy with the product, thanks Etrailer,
2020 Ram 1500.
Installation is fidgety with lining everything together for the upper bracket with u-bolt(reason for 4 stars), but still preferred over cutting the bump stop mounts off. Replaced the Timbrens with this and it is night and day difference in ride quality both unloaded and towing.
Would purchase again.
Product is well constructed and installation is straightforward. But you cannot build the kit and slip it in, you have to leave the top bracket off and install it after setting the lower bracket and air bag in place. I will note, I was working off jack stands and a floor jack, not on a lift.
Info for this part was:
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