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  1. Vehicle Suspension
  2. Pacbrake
  3. Air Springs
  4. Towing/Load Leveling
  5. Heavy Duty
  6. Rear Axle Suspension Enhancement
THIS ITEM IS NOT A FIT FOR
2021 Winnebago View Motorhome
Pacbrake

Pacbrake Alpha SD In-Coil Air Bag Suspension Kit - Rear Axle - 2,000 lbs

Part Number: PB75RV
In Stock
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$135.52
Retail:$150.58
You Save: $15.06
Vehicle Suspension
Not Confirmed to Fit

2021 Winnebago View Motorhome

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2,000-lb Capacity. When your pickup starts to sag under weekend gear or a small trailer, these in-coil air springs give you the boost you need. They fit inside your factory coils to level your ride, and bring back a smooth, stable feel when loaded. Great Prices for the best vehicle suspension from Pacbrake. Pacbrake Alpha SD In-Coil Air Bag Suspension Kit - Rear Axle - 2,000 lbs part number PB75RV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (3)
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  • Videos (2)
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Pacbrake Vehicle Suspension - PB75RV

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

2,000-lb Capacity. When your pickup starts to sag under weekend gear or a small trailer, these in-coil air springs give you the boost you need. They fit inside your factory coils to level your ride, and bring back a smooth, stable feel when loaded.


Highlights

  • Custom Fit for Your Vehicle: Designed to install directly inside the factory rear coil springs.
  • 2,000-lbs Load Support: Provides rear suspension support for towing, hauling, and leveling under load.
  • Adjustable Pressure for Versatile Use: Operates between 0–70 psi to match your needs.
  • Safer, Smoother Ride: Helps reduce rear-end sag, sway, and bottoming out.
  • UV-Stabilized for Long-Term Durability: Resists cracking, hardening, and degrading over time.
  • Ready Now, Upgrade Later: Use manual inflation or connect to onboard air when you're ready.

Features to know about

Haul Without Dragging Your Suspension Down

Factory coils can struggle under real-world loads and that's where Pacbrake's in-coil Alpha air springs help. These air springs fit directly inside the rear coils to add up to 2,000 lbs of leveling support, reducing sag and helping you stay in control under load. You'll notice steadier braking, sharper handling, and less stress on your factory suspension every time you tow or haul.

Fine-Tuned Pressure for a Tailored Ride

If you're hauling a full bed or just need a little extra stability, these in-coil air springs adapt with you. Inflate anywhere from 0 to 70 psi to match your load and ride style. Running empty? Drop the pressure for a smooth stock-like feel. Hauling heavy gear? Bump it up to keep your ride level and stable. Manual inflation keeps it affordable and easy to manage on your own terms.

Built to Last, Even When the Weather Doesn't Cooperate

Some air springs get brittle over time, especially when they're exposed to sun and temperature swings. Pacbrake Alpha air springs are built with a UV stabilizer that helps prevent cracking and hardening, so they keep doing their job even after years of daily driving.

Flexible for Now, Adaptable for the Future

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 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 2,000 lbs of additional rear suspension support
  • Spring type: in-coil air springs
  • Operating temperature: -40 F to 185 F
  • Air bags will not increase your vehicle's weight-carrying capacity. Do not exceed the manufacturer's recommended limits.

Adjustability:

  • Air pressure range: 0 psi – 70 psi

Estimated Install Time:

  • Professional install: 1 hrs
  • DIY: 1-1/2 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 warranty on air springs
  • Two year or 24,000 miles on spacer and fasteners

Included Components:

  • Pacbrake Alpha in-coil air springs (rear axle)
  • Air line tubing and push-to-connect fittings, hose cutter, manual inflation valves, air bag spacer


HP10567 Packbrake Alpha SD In-Coil Air Spring Suspension Kit - 2,000 lbs - Manual Inflation Valves

Installation Details PB75RV Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Video of Pacbrake Alpha SD In-Coil Air Bag Suspension Kit - Rear Axle - 2,000 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 SD Rear Axle In Coil Air Bag Suspension Kit - PB75RV

Hi everybody. Andy here with etrailer.com. Let's take a quick look at this pack brake Alpha SD rear axle in coil airbag suspension kit. Now this kit has been designed to fit your 2019 and newer RAM 1500 Classic, both the two and four wheel drive models. I do wanna let you know up front that these are not gonna be compatible with the RAM 1500 non-classic or models with rear leaf springs. So just so you're aware of that.

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 air 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. As you know, factory coils can struggle under real world loads, and that's where these in coil, Alpha Air Springs are going to help. These air springs are gonna fit directly inside of the rear coils to add up to 2000 pounds of leveling support. That's gonna help reduce sag and help you stay in control under a load.

You're gonna notice steadier braking, sharper handling, and less stress on your factory suspension every time you tow or haul. Now if you're hauling a full bed or you just need a little extra stability, these in coil air springs are going to adapt with you. You're gonna be able to inflate anywhere from zero to 70 PSI to match your load and ride style. Then if you're running on empty, you can drop the pressure for a smoother stock like feel. If you're hauling heavy gear, bump it up to your ride level and bump it up to keep your ride level rather and stable.

Now the manual inflation valves are going to help keep it effective and easy to manage on your own terms. As you can see, airline is included with this. Now, some of the air springs can get brittle over time, especially when they're exposed to sun and temperature swings. But these air springs are built with a UV stabilizer that's gonna help prevent cracking and hardening. So they're gonna keep doing their job even after years of daily driving.

So this kit is designed to work with your setup today and wherever your upgrades may take you tomorrow. And again, you're gonna be able to inflate these manually with standard air valves right out of the box. No extra parts are going to be needed, but if you already have an onboard compressor, that's great. This system is going to connect easily to most existing setups. And then maybe you're planning for something like an in-cab wireless controller sometime down the road. That's not gonna be an issue because the foundation with this kit is already built in, making it easy to expand your control options when you're ready. So again, this is going to include everything that you see here on my table. You can get these spacers, cable ties, airline instructions. And again, the load support is up to 2000 pounds. But be aware of the fact that these do not actually increase your truck's weight carrying capacity. So you wanna make sure that you're not exceeding your manufacturer's recommended weight limit. If you do pick this kit up, we wanna hear back from you, specifically your experience with not only getting these installed, but using them so you can share your experiences with us by dropping a comment or leaving a review on this product page. And if you have any other additional questions that I did not answer for you during our time together today, don't hesitate to reach back out to us either by phone, chat, or email. We wanna make sure that you're getting exactly what you want and exactly what you need. 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

4.7

3 reviews
2,000-lb Capacity. When your pickup starts to sag under weekend gear or a small trailer, these in-coil air springs give you the boost you need. They fit inside your factory coils to level your ride, and bring back a smooth, stable feel when loaded.

by:

The air bags seem to work well. The installation was tricky and I wouldn’t recommend it for the amateur.



by:

Easy installation. Instructions are pretty simple. Be sure to follow torque specs. Add a little thread seal tape to your 90 swivel fitting to prevent leaks.The heat shield was not necessary for my year model(2024),since there was plenty of space between the air bags and the exhaust. Instead of drilling holes under license plate, I just used the screw hole for my license plate for schrader valves. Just drilled out the license plate holes out and little placed through. No more bouncing or suspension sag. Recommended!



by:

Bolted right into place, GMC Canyon. No installation issues or hang up’s. Whole thing Might have taken about 3 hours. Pumped em’ up and have been driving for a week, no leaks no issues. I recommend!


3
3

See what our Experts say about this Pacbrake Vehicle Suspension


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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