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  6. Rear Axle Suspension Enhancement
Pacbrake Alpha XD Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers - Rear Axle - 7,500 lbs
Pacbrake

Pacbrake Alpha XD Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers - Rear Axle - 7,500 lbs

Part Number: PB72FV
In Stock
$688.33
Retail:$764.81
You Save: $76.48
Vehicle Suspension

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When the load gets heavy, your truck shouldn't feel like it's fighting you. These air bags help you stay level, drive steady, and stay 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 XD Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers - Rear Axle - 7,500 lbs part number PB72FV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (1)
  • Q & A (0)
  • Videos (2)
  • Photos

Pacbrake Vehicle Suspension - PB72FV

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

When the load gets heavy, your truck shouldn't feel like it's fighting you. These air bags help you stay level, drive steady, and stay in control so you can tow with confidence and handle heavy loads without second-guessing your suspension.


Highlights

  • Custom Fit for 2001–2010 Silverado/Sierra 3500 HD: Precision brackets bolt to factory attachment points.
  • 7,500-lb Load Support: Built to handle massive payloads, fifth wheel towing, and heavy equipment hauls.
  • Ride Smooth When Unloaded: Internal jounce bumpers protect ride quality with no air in the bags.
  • Adjustable Air Pressure: Set support between 5 psi and 100 psi depending on your load.
  • Complete Kit, No 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

Built to Handle Serious Loads and Keep You in Control

When the load gets heavy, your truck needs more than just rear springs hanging on for dear life. Alpha XD Pro air bags add up to 7,500 lbs of rear axle support, keeping your truck level and 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.

Zero-Pressure Comfort When Running Unloaded

Bottoming out doesn't just feel rough, it can wreck your air bags. That's why this system includes jounce bumpers inside each bag, so even with no air pressure, your suspension has a built-in safety net. You can safely run at 0 psi when unloaded, which means no harsh rebound just that smooth, factory-style ride. If you're heading to work with an empty bed or cruising home after dropping the trailer, your truck stays comfortable, controlled, and ready to haul again with just a quick bump in pressure.

Dial In the Ride for Any Load

Every haul is different. That's why Alpha XD Pro air springs give you full control over ride height and firmness with adjustable air pressure from 5 to 100 psi. Hauling a fifth wheel or a full bed of gravel? Crank up the pressure. Unloaded and heading home? Drop it back down for a softer ride. With manual inflation valves included, tuning your suspension for the day's work is straightforward.

Built Tough for Work and Weather

Air bags are only as strong as their weakest link. That's why Alpha XD 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 without welding or drilling your frame. Just smart engineering that fits the way it should which is perfect for the DIY-er. With high-quality fittings 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 XD Pro 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:

Application:

  • 2001–2010 Silverado/Sierra 3500 HD - 2WD or 4WD
  • Works with 5th wheel hitches
  • Will not fit Cab & Chassis vehicles

Air Suspension:

  • Load support: up to 7,500 lbs of additional leveling support
  • Spring type: Double Convoluted with internal jounce bumper
  • 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

Warranty:

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

Included Components:

  • Pacbrake Alpha XD 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


HP10005-X-J Packbrake Alpha XD Pro Rear Air Spring Suspension Kit - 7,500 lbs - Manual Inflation Valves

Installation Details PB72FV Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Video of Pacbrake Alpha XD Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers - Rear Axle - 7,500 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 XD Pro Rear Axle Air Bag Kit With Jounce - PB72FV

Hi, everybody. Andy here with etrailer.com. Let's take a real quick look together at this Pacbrake Alpha XD Pro Rear Axle Airbag Suspension Kit with internal jounce bumpers. Now this kit has been designed to fit your 2001 to 2010 Chevy Silverado and GMC Sierra 3,500 HDs, both with the two wheel or a four wheel drive. I do wanna point out that this kit has not been designed to fit your Cabin Chassis trucks. And on custom fit parts such as this kit, I do recommend taking advantage of our vehicle fit guide here at etrailer.com.

Just input the year, make, and model of your vehicle, 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 those rear springs hanging on for dear life. These airbags are going to add up to 7,500 pounds of rear axle support, keeping your truck level and steady even when the trailer is loaded. The bed is packed and the miles are long. So no more rear end sag is going to be throwing off your braking or steering, or your headlights.

They're gonna be pointing at a level as they should be and not up in the sky because of a heavy load that's bogging you down in the back. Now, bottoming out doesn't just feel rough, it can wreck your airbags. That's why this system includes internal jounce bumpers inside each bag. So even when there's no air pressure, your suspension has a built-in safety net. You can safely run at zero PSI when unloaded, which means no harsh rebound, just that smooth factory style ride.

Of course, as you know, each haul is different. That's why these air springs are gonna give you full control over ride height and firmness with adjustable air pressure from five to 100 PSI. So hauling a fifth wheel or a full bed of gravel isn't going to be a problem for you because you're gonna be able to crank up the pressure. And then if you're unloaded and heading home, you can just drop it back down for a softer ride. So with the manual inflation valves included, tuning your suspension for the the day's work is gonna be very easy, very straightforward.

Now, airbags are only as strong as their weakest link. That's why these airbags are reinforced all the way through with heavy duty end caps, 20 internal support wires, integrated jounce bumpers, and these powder coated custom fit steel brackets. And then when you include this corrosion resistant hardware and then these thick roll plates at the top and the bottom, you've got a system that's gonna hold up really well against real world hauling through heat, cold, salt, and just slop in general. Speaking of these brackets, these are precision laser cut brackets. They're designed to bolt cleanly to your truck's existing mounting points without welding, which is great, or drilling to your frame, which is great, again, with the included hardware. And as you can see, I do have them kind of loosely assembled here just to kind of give you an idea of what this is going to look like when it's installed and mounted on your truck. And the brackets do have a really nice, one of the best powder coat finishes I've seen for airbag custom fit brackets. So just high quality overall. And even the bags themself, it's really high quality materials, higher quality than a lot of other competitors that I have seen in the past. So I'm very impressed with the quality and the fit and finish of this kit. So this kit will be designed to work with your setup today and wherever your upgrades take you tomorrow. You're gonna, again, as I mentioned, be able to inflate manually with standard air valves right out of the box. No extra parts are gonna be needed, but if you already have an on onboard compressor, this system is going to connect easily to most existing setups. And then if you're planning for an in-cab wireless controller down the road, that's not gonna be an issue. The foundation's gonna already be built in, making it easy to expand your control options when you are ready. So like I said, this is going to give you load support up to 7,500 pounds. But I do wanna point out that these airbags do not actually increase your truck's weight carrying capacity, So you do wanna make sure that you follow your manufacturer's recommended weight limits on your truck, and you wanna make sure that you don't exceed that. Instructions are gonna be included to guide you through the installation process. And if you do pick this system up, we would love to hear back from you regarding your experience getting this installed. And we want to hear how you've been liking this system, what improvements you've noticed, and how you're using it in particular. So you can share your experiences with us by dropping a comment or leaving a review on this product page. We would definitely like to hear back from you. Well, that's gonna wrap up our look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.

Ratings & Reviews

5.0

1 reviews
When the load gets heavy, your truck shouldn't feel like it's fighting you. These air bags help you stay level, drive steady, and stay in control so you can tow with confidence and handle heavy loads without second-guessing your suspension.

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Info for this part was:

Employee Dustin K
Video Edited:
Dustin K
Employee Daron K
Edited by:
Daron K
Employee Andy C
Installed by:
Andy C
Employee Dawn Z
Written by:
Dawn Z

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