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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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2015 Keystone Springdale Fifth Wheel
Pacbrake

Pacbrake Alpha HD Air Bag Suspension Kit - Rear Axle - 5,000 lbs

Part Number: PB75ZV
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$416.38
Retail:$462.64
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Vehicle Suspension
Not Confirmed to Fit

2015 Keystone Springdale Fifth Wheel

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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 Air Bag Suspension Kit - Rear Axle - 5,000 lbs part number PB75ZV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (25)
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  • Videos (2)
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Pacbrake Vehicle Suspension - PB75ZV

  • 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: Adds rear axle support for towing, hauling, and bed-loaded stability.
  • Improved Ride Stability: Reduces rear-end sag, sway, and bounce for better handling under load.
  • 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 an onboard air system when you're ready.

Features to know about

Control and Cushion When It Counts

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.

Dial in the Ride for Any Load

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.

Built Tough for Work and Weather

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.

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 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.

Flexible for Today, Ready for What's Next

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 (PB99YV).


Looking for a complete system with onboard air storage too? Upgrade to one of the "Ultimate" Kits (PB65YV) or (PB75YV) with air bags, compressor, wireless controller, and a 1/2-gallon or 2-1/2-gallon tank for added versatility.

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; maintain minimum 5 psi when unloaded

Estimated Install Time:

  • Professional install: 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 air springs (rear axle)
  • Precision laser-cut powder-coated steel brackets
  • Grade 5 plated hardware
  • Air lines, push-to-connect fittings, inflation valves, installation instructions


HP10337 Pacbrake Alpha HD Rear Air Suspension - 5,000 lbs - Manual Inflation Valves

Installation Details PB75ZV Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Video of Pacbrake Alpha HD Air Bag Suspension Kit - 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 Towing/Load Leveling Kit - PB75ZV

Hello, everybody. This is Jeff at etrailer.com. Today we're gonna take a look at the Pacbrake Alpha HD Airbag Suspension Kit for your rear axle. Has a 5,000 pound load leveling capacity. Now, this is a custom fit part. It is designed to fit the 2009 and newer Dodge RAM 1500 trucks, both two-wheel drive and four-wheel drive.

Also fits the 2019 to 2023 RAM 1500 Classic trucks, also two-wheel drive or four-wheel drive. One note I do wanna mention. It will not fit the TRX models, the RHO models, or the vehicles with factory air suspension. And because it's a custom fit part, 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 your application. So basically, when the load gets heavy, your truck's gonna need more than just rear springs hanging on for deer life.

That's where these Alpha HD Air Springs come into play. They're gonna add up to 5,000 pounds of rear axle support, keeping your Dodge RAM level, steady, and confident even when the trailer's loaded, the bed is packed, and the miles are long. So, there's no more rear end sag throwing off your braking and steering, or your headlights pointing into the sky. So, with the airbag support underneath, you can keep control of your ride, your cargo, and your peace of mind even when you're towing a travel trailer or moving a serious payload. This part will include everything shown here on the table.

Includes the air springs for the rear axle, upper and lower roll plates, the precision laser cut powder coated steel mounting brackets. All the grade 5 plated hardware. Comes with the air lines with the inflation valves, and the push-to-connect fittings, which we've pre-installed right here on the bottom. That's where your air lines connect to. And a nice set of installation instructions that will describe how this all goes together.

Now, every load is different. That's why these Alpha HD airbags will provide adjustable air pressure control between 5 and 100 PSI. So basically, if you need full strength for a heavy trailer, just pump it up. If you're dropping off the trailer and heading home light, drop the pressure for a smoother ride. The simple manual inflation lets you adjust your suspension without the guesswork, so your truck feels balanced and comfortable, whether you're packed to the gills or just running light errands. Also, heavy hauling demands extreme durability. I did wanna zoom in and show you these Alpha HD springs that are built with one-inch thick corrosion resistant end caps on each spring. And then they're reinforced with 20 internal support wires for maximum strength under load. The roll plates we mentioned, the upper and lower roll plates, these are heavy duty. Helps protect the bags from chafing and extend your lifespan of them. And they use powder coated steel mounting brackets, which will fight back against rust, road salt, and rough seasons. (clears throat) Now, the precision laser cut brackets are designed to bolt cleanly to your truck's existing mounting points without any welding or drilling your frame. Just smart engineering that fits the way it should, which is perfect for the do-it-yourselfer. The manual valves we mentioned, these will mount through your license plate fastener holes, or a location of your choosing. And with the high quality fittings, the pre-bent brackets, the mounting hardware all included, it'll be back on the road with a stronger, steadier truck in just a few hours without a trip to the shop. Now, this kit is designed to work with your setup today and whenever your upgrades take you tomorrow. You can inflate manually with the standard air valves right out of the box. No extra parts needed. And if you already have an onboard compressor, this Alpha HD System will connect easily to most existing setups. And if you're planning for an in-cab wireless controller down the road, no problem. The foundation's already built in, making it easy to expand your control options when you're ready. One thing I do wanna mention, air springs will not increase your vehicle's weight carrying capacity. So, you wanna 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 Airbag Suspension Kit for your rear axle.

Customer Satisfaction Score:

Ratings & Reviews

4.7

24 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.

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Don’t fit, worked on it for hours with no luck.



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They need instructions to be more clear but fit very nicely i would recommend pacebrake



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Worked out great



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Thank you Joshua for your assistance.



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Easy install and done exactly what I needed it to do



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Excellent choice… Very high-quality… Took 4 to 5 hours to install… Which included new shocks getting all the tools together and clean up… Very happy thank you



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Installed this past weekend. Haven't towed with it yet. Nice construction and finish. I have a 2025 Chevrolet Trail Boss 2500HD and the spacers are NOT needed. Measurement for needing the spacers in 7" and above between jounce cup and contact pad. My space was 5.5" to 6".



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Awesome product easy to install and I really appreciate etrailer service



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It was very easy install . The ride has improved a lot while towing my 41 ft. toy hauler , Thanks !!



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Direct bolt on, plug and play



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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.



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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!



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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.



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Very well built brackets, installation was as explained in the instruction. Happy Camper!



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Going camping!!!


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See what our Experts say about this Pacbrake Vehicle Suspension

  • Will The Pacbrake Alpha HD Rear Air Suspension Kit PB75ZV Fit A 2025 Ram 1500 Crew Cab
    Hi Jerry! I am assuming you meant 2025 Ram 1500 Crew Cab? If it is, then yes, the Pacbrake Alpha HD Air Bag Suspension Kit - Single Convoluted - Rear Axle - 5,000 lbs # PB75ZV will indeed fit. That goes for 2 wheel and 4 wheel drive models as well. -Not compatible with in-bed hitch as this mounts in the same location as hitch brackets -This does not fit vehicles with a factory Air Suspension system -This does not fit RHO models If you have any of those options, just let me know and I...
    view full answer...
  • Will The Factory Bump Stops Need To Be Removed When Installing Pacbrake Air Bags In 2018 Ram 1500?
    Hi Carl! Will the factory bump stops need to be removed from your 2018 Ram 1500? Yes they will. Will they need to be cut out though? No they will not. It might a slight pain in the rear, but they can be twisted out. If they really don't want to move, shoot some WD40 around them and let it sit for 10 or 15 minutes and they should come out easier. Can get it started by whacking them with a hammer too. A little percussive maintenance is always fun. : P Once they are out, installing the...
    view full answer...
  • Do I Have to Remove the Bump Stops to Install the Pacbrake Alpha HD Air Bags on a 2022 Ram 1500?
    Yes, you will Jeff. The Pacbrake Alpha HD Air Bag Suspension Kit item # PB75ZV attaches directly to the bump stop mounting bracket when installed on your 2022 Ram 1500. The air springs will sit directly below them and contact with your axle on the other end. There's no where to mount the air bags if you don't remove the rear bump stops. I recommend adding the Firestone Air Command item # F2610 to your truck. This onboard compressor will allow you to adjust the PSI in your air bags from...
    view full answer...

Do you have a question about this 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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