bing tracking image
  1. Vehicle Suspension
  2. Pacbrake
  3. Air Springs
  4. Towing/Load Leveling
  5. Rear Axle Suspension Enhancement
  6. Heavy Duty
THIS ITEM IS NOT A FIT FOR
2001 Ford Excursion
etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Pacbrake

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

Part Number: PB35ZV
In Stock
$522.80
Retail:$580.88
You Save: $58.08
Vehicle Suspension
Not Confirmed to Fit

2001 Ford Excursion

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
By submitting this form, you understand and agree to our Terms of Sale, Website Terms of Use and Privacy Policy.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
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 PB35ZV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (61)
  • Q & A (0)
  • Videos (2)
  • Photos

Pacbrake Vehicle Suspension - PB35ZV

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


HP10324 Pacbrake Alpha HD Rear Air Suspension - 5,000 lbs - Manual Inflation Valves

Installation Details PB35ZV Installation instructions

This Product Fits The Following Vehicles




Video of Pacbrake Alpha HD Air Bag Suspension Kit - Rear Axle - 5,000 lbs
Video Thumbnail Video Player Dialog

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 Rear Axle Double Convoluted Air Bags - PB35ZV

Hi, everybody. Andy here with etrailer.com. Let's take a real quick look at this Pacbrake Alpha HD Rear Axle Double Convoluted Airbag Suspension Kit. Now, this kit has been designed to fit your 2012 and newer Ford F-450, F-550, and F-600 commercial cabin chassis, both the two-wheel and four-wheel drive models. Now, I do recommend going through our vehicle fit guide here at etrailer.com, insert 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 factory rear springs hanging on for dear life.

These airbags are going to give you up to 5,000 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 you off, throwing off your braking or steering or headlights pointing into the sky. Now, as you no doubt know, every haul is going to be different. That's why these air springs give you full control over the ride height and the firmness, with adjustable air pressure from five to 100 PSI. If you're hauling a fifth wheel or a full bed of gravel, you're just gonna crank up the pressure and then when you unload it and you're heading home, all you gotta do is drop that pressure back down for a softer ride. With the manual inflation valves included and air line, tuning your suspension for the day's work is gonna be very easy, very straightforward.

Now, extreme hauling demands extreme durability, and these springs are built with one-inch thick, corrosion-resistant end caps, which you can't see because of these roll plates. I do, as you see here, have 'em kind of loosely put together to kind of give you an idea of how these are gonna be put together when you install them. But the end caps are going to be corrosion resistant. And then these bags are reinforced with 20 internal support wires, giving you maximum strength under that load. And then we have these heavy-duty roll plates here on either end and they're going to protect the bags from chafing and they're gonna help extend the lifespan of the bags.

And then our custom-fit, powder-coated steel brackets are gonna fight back against rust, corrosion, road salt, and everything that's gonna be exposed to. If it's bitter cold, scorching heat, or mud slick job sites, this system is built and made to outlast whatever the road dishes out on them, mile after mile and load after load. Now, back to these brackets here, these are precision laser-cut brackets and these are designed to bolt cleanly to your truck's existing mounting points without welding or drilling to your frame. And just as a side note, I'm very impressed with the overall quality that Pacbrake is providing here. These brackets are are not only, as I mentioned, precision cut, but the powder coating on here is very premium, in my opinion.

I've dealt with other manufacturers' airbag kits before and while they have their strong points, just the premium feel of the materials used with the bags and the hardware here, in my opinion, are exceptional from Pacbrake here. So if you're looking for a premium option with an airbag kit, this is definitely going to be the way to go. Now, you're gonna be able to, as I mentioned, inflate manually, and you're gonna be able to do that with the standard air valves right out of the box, no extra parts needed. And then if you already have an onboard compressor, these are going to easily connect 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 because with this kit, you're laying down the foundation for that. So it's gonna be very easy to expand your control options when you're ready. So again, this has a load support up to 5,000 pounds, and I do wanna point out though that these air springs do not actually increase your truck's weight carrying capacity. So because of that, you do not wanna exceed the manufacturer's recommended weight limit. This does include everything that you see here. You're gonna get the hardware, the U-bolts, additional brackets, and air line, everything that you need to get this installed into place. And if you do decide to pick this up, we would love to hear back from you regarding your experience with the installation and the operation of this kit. You can share your experience with us by dropping a comment or leaving a review on this product page. And if you have any additional questions, don't hesitate to give us a call. We'd love to help you out. 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.

Customer Satisfaction Score:

Ratings & Reviews

4.7

61 reviews
Review sort icon
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:

Overall the installation isn’t bad, couple bolts/nuts difficult to access but doable. Took little over an hour to install both heavy duty bags.
They do roughen the ride on the 2021 RAM 1500 hemi/etorque 4x4 with coil springs. I’ve brought the air pressure down to 2 lbs and still notice that without weight in bed or trailer attached it still is stiffer.
I would recommend using these Pacbrake heavy duty air bags.



by:

Great kit. Great quality. Easy assembly. Would’ve given 5 stars except for the J-Hooks. Having the end user cut them off creates an opportunity for someone to mess up. They could easily be made the correct length without causing install issues.



by:

Easy instal and has worked perfectly.



by:

nick was very helpful everything was as expected



by:

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.



by:

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!



by:

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.



by:

Looks great. Thanks



by:

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



by:

I put them to use today and was very happy with the ride and stability while towing my camper.



by:

Love the product
The directions could’ve
been a little more detailed



by:

Put about 1800 miles on these last weekend. Was picking up a car that's heavier than my normal race car on the ramp truck, so I wanted to give the truck a bit of help. Good news, it worked well. Truck rode beautifully, loaded or unloaded.

The instructions could be a bit more clear, in regards to the clinch stud. I had that on backwards at first because of how things appeared in the picture. Also, I know most things are DIY but installation was about 80% assembly, 20% actual install. If these came already assembled, it would have saved a lot of time!



by:

These fit absolutely perfect. Easy install help keep my truck level when connected to my fifth wheel.



by:

Simple to install, did it without pulling the tires and wheels I seen no need for that, It took me a total of 3 hrs. to install in my driveway.



by:

What a difference the air bags make when towing a camper. Installation was easy, instructions were well written.



by:

The air bags were very simple to install but the u bolts for my gooseneck mount interfered with the air bag mounting



by:

Good quality product. For my 2018 1500 Silverado it was a little difficult to get the U bolt over the frame but under the hard lines running on top of the frame in that area.



by:

Aluminum ends, brackets, and even packaging was all exceptional and part of the reason I choose these. Haven't trailered anything yet but upon initial install no noticeable difference ride difference running 10 psi on a F250.



by:

Worked well when pulling trailer. Kept vehicle and trailer level. Without trailer seems to creak and groan more than I thought it would.



by:

Both of the fitting leak where they swivel. Had to take everything back off. Not my first time installing bags but First time with this brand and will be the last. Etrailer won’t make it right and having me go though pacbrake. Waiting on email to get process started. They Don’t seem to be in any hurry. Will try and source fitting local so I can get this back together. Shane on you etrailer. I ordered from you and shipping was slow not knowing it was directly coming from manufacturer.



by:

Went in easy enough, better than I thought. Ride without trailer attached is good. Have not hooked up trailer yet



by:

Easy to install with the rear tires off, did one side at the time with a single jack and two jack stands. The towing of our fifth wheel is much better, much less chucking and more directional stable.



by:

I decided on the pack break airbag due to my truck stock height. With a limited amount of room, there is between the axle and the frame they fit perfectly. They almost work with no air in them at all. I figure with a little bit of pressure. It’ll hold all the weight and still ride well I had them on the truck completely functional in an hour and a half, and that’s even with one bag, assembled incorrectly and reassembled correctly and installed so even with that little mistake it was still an hour and a half installed with the wheels off highly recommend this kit looks good. Seems to work well and fits in the tight space stock truck Cuz.



by:

I like these bags. This is my 3rd set of air bags but my 1st set of PACBRAKE I have owned and they are the best. Metal where others are plastic. Powder coated instead of paint that rusts off. nice hardware instead of crummy allan bolts that can't easily be removed. The bracing is much better too. They are by far higher quality than the firestone. Installation is about the same but they use stainless air fittings instead of plastic like the other guys. The ends of the PACBRAKE are machined aluminum. My Airlifts brand were plastic with inserts that broke out.(see pic) I havent had the chance to use the new PACBRAKE under tough conditions but the hardware and Materials they are made of are superior to the other brands.



by:


25
25

See what our Experts say about this Pacbrake Vehicle Suspension


Info for this part was:

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

At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.


Product Experts Available Now!
Call 1-800-940-8924