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  1. Vehicle Suspension
  2. Pacbrake
  3. Air Springs
  4. Towing/Load Leveling
  5. Heavy Duty
  6. Rear Axle Suspension Enhancement
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2019 Keystone Springdale Travel Trailer
Pacbrake

Pacbrake Alpha HD Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers - Rear Axle - 5,000 lbs

Part Number: PB77VV
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$490.00
Retail:$544.44
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Vehicle Suspension
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2019 Keystone Springdale Travel Trailer

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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. Great Prices for the best vehicle suspension from Pacbrake. Pacbrake Alpha HD Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers - Rear Axle - 5,000 lbs part number PB77VV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (12)
  • Q & A (0)
  • Videos (2)
  • Photos

Pacbrake Vehicle Suspension - PB77VV

  • Air Springs
  • Towing/Load Leveling
  • Pacbrake
  • Heavy Duty
  • Rear Axle Suspension Enhancement
  • Suspension Only

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.


Highlights

  • Custom Fit for Your Vehicle: Precision brackets bolt to factory attachment points.
  • 5,000-lb Load Support: Reduces rear-end sag, sway, and bounce for better handling under load.
  • Ride Smooth When Unloaded: Internal jounce bumpers protect ride quality with no air in the bags.
  • Adjustable Air Pressure: Set support between 0 psi and 100 psi depending on your load.
  • Complete Kit, Minimal Drilling: Includes laser-cut brackets, push-to-connect fittings, and all hardware.
  • Ready Now, Upgrade Later: Use manual inflation or connect to onboard air when you're ready.

Features to know about

Control and Cushion When It Counts

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.

Comfort When Unloaded, Control When Loaded

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.

Built Tough for Work and Weather

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.

Installation That Doesn't Waste Your Weekend

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.

Flexible for Today, Ready for What's Next

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.

Specs:

Weight & Capacity:

  • Load support: up to 5,000 lbs of additional leveling support
  • Air springs will not increase your vehicle's weight-carrying capacity. Do not exceed the manufacturer's recommended weight limit.

Adjustability:

  • Air pressure range: 5 psi - 100 psi; 0 psi when unloaded

Estimated Install Time:

  • Professional install: 2-1/2 hrs
  • DIY: 4 hrs, depending on tools and experience. Plan for extra time if this is your first air spring install or you're working in a driveway setup.

Warranty:

  • Limited lifetime on air bags
  • 2-Year or 24,000 miles on mounting brackets, fasteners, and spacers

Included Components:

  • Pacbrake Alpha HD Pro air springs (rear axle, with internal jounce bumpers)
  • Precision laser-cut powder-coated steel brackets
  • Grade 5 plated hardware
  • Air lines, push-to-connect fittings, inflation valves, installation instructions


HP10072-J Packbrake Alpha HD Pro Rear Air Spring Suspension Kit - Manual Inflation Valves - 5,000 lbs

Installation Details PB77VV Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Video of Pacbrake Alpha HD Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers - Rear Axle - 5,000 lbs

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of Pacbrake Vehicle Suspension - Alpha HD Pro Towing/Load Leveling Kit - PB77VV

Hello everybody, this is Jeff etrailer.com. Today we're gonna take a look at the Pacbrake Alpha HD Pro airbag suspension kit with your internal Jounce bumpers for the rear axle, has a 5,000 pound load leveling capacity. Now this is a custom fit part. It is designed to fit the 2001 to 2006 Chevrolet Silverado and GMC Sierra 1500 HD trucks. Works on a two wheel drive or four wheel drive models. And on a custom fit part like this, I do like to recommend for you to go to our website, use the fit guide, put in your year and model vehicle, and it'll show if this will work for application.

Now these airbags are gonna help you stay level, drive steady, and stay in control when you're hauling heavy loads. This kit will include everything I have laid out here on the table, includes the air springs for the rear axle, has the upper and lower roll plates, the precision laser cut powder coated steel brackets. The grade five plated hardware does come with the air lines with the inflation valves. Up here you can see we've installed the push to connect fittings onto the springs. Allows you to hook the air lines to your springs, and it'll come with installation instructions that'll describe how this all goes together.

Basically, when your trailers loaded, the bed's full, your trucks gonna need more than just the stock rear springs to stay level and in control. That's where these Alpha HD Pro Air Springs will come into play. They're gonna add up to 5,000 pounds of rear axle support. Helps your truck stay steady and secure through every haul. So basically, whether you're pulling a fifth wheel, hauling materials or towing equipment, just upgrades gonna keep you from sagging, squatting, and struggling for control.

And the bottoming out doesn't just feel rough, it could wreck your air springs. That's why this system here will include, we mentioned the jounce bumpers that are on the inside of each spring. So even with no air pressure, your suspension does have a built-in safety net. So you could safely run at zero PSI when you're unloaded, which means no harsh rebound. just that smooth factory style ride.

And also one load isn't like the next. That's why the Pacbrake will give you freedom to adjust the air pressure from five to 100 PSI. Basically, if you need full support for a loaded trailer, just pump it up. If you're unloaded, heading home, just drop the pressure for a lot smoother ride. So really, with the simple manual inflation right out of the box, you'll get better ride quality and confidence no matter how much you're hauling. Basically, you can just start with the simple manual inflation. Then you can even expand the system later with onboard air or wireless controls if you want to. The Alpha HD Pro is designed to scale with your setup, making future upgrades easy without redoing your foundation. Now, I did wanna zoom in and show you these parts. These aren't light duty gear. These Alpha HD Pro Springs are built with one inch thick end caps on each end. They do use 20 internal wires on the spring to handle extreme loads without giving in, and they use corrosion resistant parts. The roll plates we mentioned right here, these are for protection of the spring, and the powder coated brackets will ensure that the system will hold up through road salt, rain, mud, and even over time. Now the precision cut, laser cut brackets are designed to bolt cleanly to your truck's existing mounting points without any welding or drilling in your frame. And these air springs will not increase your vehicle's weight carrying capacity. So you make sure not to exceed the manufacturer's recommended weight limit. But that's gonna do it for a look at the Pacbrake Alpha HD Pro airbag suspension kit with your internal Jounce bumper for the rear axle.

Ratings & Reviews

4.3

12 reviews
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.

by:



by:



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by:

Easy to install and looks like it’s a high-quality product



by:

haven't received or used it yet but pretty darn excited



by:

The brackets are not built heavy enough



by:

Easy install. Will pull trailer 3000 miles on vacation and see how it performs to Montana on highways and Forest Service roads.



by:

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 !



by:

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



by:

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,



by:

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.



by:

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.


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See what our Experts say about this Pacbrake Vehicle Suspension


Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Dustin K
Video Edited:
Dustin K
Employee Daron K
Edited by:
Daron K
Employee Dawn Z
Written by:
Dawn Z

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