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  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
1983 Honda GL Series
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Pacbrake

Pacbrake Alpha HD Pro Air Bag Suspension Kit w/ Internal Jounces - Rear Axle - Stainless Steel - 5K

Part Number: PB52GJ
In Stock
$599.87
Retail:$666.52
You Save: $66.65
Vehicle Suspension
Not Confirmed to Fit

1983 Honda GL Series

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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Rear air suspension kit that adds adjustable air helper springs to support your vehicle's rear suspension. Designed to reduce sag, sway and bottoming out, with internal jounce bumpers and up to 5,000 lb of load leveling capacity. Great Prices for the best vehicle suspension from Pacbrake. Pacbrake Alpha HD Pro Air Bag Suspension Kit w/ Internal Jounces - Rear Axle - Stainless Steel - 5K part number PB52GJ can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (38)
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Pacbrake Vehicle Suspension - PB52GJ

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

Rear air suspension kit that adds adjustable air helper springs to support your vehicle's rear suspension. Designed to reduce sag, sway and bottoming out, with internal jounce bumpers and up to 5,000 lb of load leveling capacity.


Features:

  • Rear air suspension kit with two air helper springs
  • Internal jounce bumpers integrated into air springs
  • Adjustable air pressure for load leveling and ride height control
  • Stainless steel braided air lines included
  • Stainless steel roll plates and Schrader valves included
  • Designed to allow air springs to run at 0 psi when unloaded


Specs:

  • Suspension position: Rear
  • Air springs: 2
  • Load leveling capacity: Up to 5,000 lb
  • Warranty:
    • Air bags: Limited lifetime
    • Mounting brackets, fasteners, and spacers: 2-Year or 24,000 miles


Note:

  • Air springs will not increase your vehicle's weight-carrying capacity. Do not exceed the manufacturer's recommended weight limit.


HP10227-J-S Pac Brake Alpha HD Pro Air Bag Suspension Kit w/ Internal Jounces - Rear Axle - Stainless Steel - 5K

Installation Details PB52GJ Installation instructions

This Product Fits The Following Vehicles




Video of Pacbrake Alpha HD Pro Air Bag Suspension Kit w/ Internal Jounces - Rear Axle - Stainless Steel - 5K
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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 Rear Axle Air Bag Kit Jounce SS - PB52GJ

Hi, everybody, Andy here with etrailer. Let's take a quick look together at this Pacbrake Alpha HD Pro Rear Axle Airbag Suspension kit with internal jounce bumpers and stainless steel hardware. Now this kit has been designed to fit your 2013 to 2015 Chevrolet Express van and GMC Savana van, both the 3500 and 4500 models. On custom fit parts such as this kit, I do recommend taking advantage of our vehicle fit guide here at etrailer. Just pop in the year, make and model of your vehicle, answer any other questions that it might have for you. 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 vehicle is going to need more than just your rear factory springs hanging on for dear life. These airbags are gonna give you up to 5,000 pounds of rear axle support and that's gonna help keep your vehicle level and steady even when the trailer is loaded or your cargo area is packed. So you're not gonna have to continue to worry about rear-end sagging, throwing off your braking or steering or your headlights pointing up into the sky. Now bottoming out just doesn't feel rough. It can actually wreck your airbags.

That's why this kit includes jounce bumpers inside of each bag as you see there on that example cutaway there on your screen. So even with no air pressure, your suspension has a built-in safety net. You're gonna be able to safely run at zero PSI when unloaded, which means no harsh rebound, just as smooth factory style ride. So this kit includes these stainless steel braided air lines, which are gonna be more durable and resistant to wear compared to the standard rubber lines. You're also going to get these stainless steel roll plates, which are gonna help protect the airbags along with Schrader valve to give you an easy way to inflate or adjust the air pressure using a standard air source.

So the stainless steel components are gonna be a big upgrade. On your screen, I'm popping up another picture there for you. You are going to get the original set of hardware that's not stainless steel. And then you're also going to get the stainless steel hardware upgrade kit. So I didn't have room for all that on my table, so I'm just showing you with some photos there, what you're actually gonna be getting, so this is going to include that stainless steel hardware.

So you're just going to replace the original hardware that this kit comes with with the stainless steel components and just follow the instructions to guide you through that. So obviously, you're not gonna be using all the hardware that you get in the kit, but that is what you're gonna be getting. And the stainless steel components, as I've been saying here, they're gonna be a big upgrade because they're built to last in those harsher conditions. Stainless steel resists rust and corrosion a whole lot better than those standard materials. It's also stronger and less prone to damage, so you're gonna be less likely to deal with leaks or wear over time. Now every 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 5 to 100 PSI. So if you're hauling a fifth wheel or a full bed of gravel, just crank that pressure up and then when you're unloaded and heading home, just drop it back down for a softer ride. With the manual inflation valves, tuning your suspension for the days work is gonna be very easy, very straightforward. These springs are built with one thick, one-inch thick, rather, corrosion resistant end caps and reinforce with 20 internal support wires. I do have this kind of loosely assembled just to kind of give you an idea of how the airbags are gonna be fitted to these brackets. These brackets, by the way, are precision laser cut brackets. They're designed to bolt cleanly to your vehicle's existing mounting points without welding or drilling to your frame. So Pacbrake, in my opinion, is one of my favorite airbag suspension systems. The materials are premium. I'm really impressed with like the rubber that is used to make the bags and the materials of the brackets, especially the stainless steel upgrade kit. So you're gonna be really happy, I believe, with this system. Now, as I mentioned, this is gonna give you up to 5,000 pounds of load leveling support, but just remember, airbags don't actually increase your vehicle's weight-carrying capacity. So you do wanna make sure that you're not exceeding your manufacturer's recommended weight limit. One final note, if you want help with installation, on this product page, typically underneath the photo section, we have a link that will take you to our installer locator. Click that link, answer the questions that it has for you, and that locator will find an installer in your area that etrailer has partnered with to do the work for you. Well, again, my name is Andy. Thank you for joining me.

Ratings & Reviews

4.5

38 reviews
5 Stars
(26)
4 Stars
(9)
3 Stars
(1)
2 Stars
(0)
1 Star
(2)
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by:
My kit had hardware that was too short and some hardware that was too long. Making the install difficult, having to use my old hardware to complete. The kid I ordered was supposed to fit my vehicle, not so much. All of my boxes had been re-taped, as if it was returned from a previous customer.
by:
2023 Ford Transit T250
First off this is my first experience with air bags. When I was a kid it was air shocks. First, off tip of the hat goes to etrailer for fast delivery. Many times I read reviews where people complain about directions. These people I would guess have very little mechanical skills. The included instructions with these is very comprehensive and thorough. The would make this easy for the average guy. Second, soon as you start to unpack the parts you can tell this is heavy duty well made product. Everything fit perfectly. I gained 3 inch’s at 50 lbs. my build is a b class transit 250 van. 148EL. When you start building these things the weight adds up quick. Was starting to regret not getting a 350 but this saved the day. No miles on it yet but certainly clearance issue is solved,
Lazer S. profile picture
Etrailer Expert

Lazer S.

2/24/2026

Nice! Glad we could help, Bob! I've seen a few people that did those Titan conversions and they can turn out pretty wicked! What's the first trip you have planned?

Bob S. profile picture

Bob S.

2/24/2026

I’m leaving for Daytona tomorrow, on bike not van but when I get back we are going down to biloxi area to look at real estate there. Still have a few things to finish on camper van but getting close. Just made it temporarily road worthy. Wife is getting antsy to travel. Thanks again for the help.
by:
Ford Transit Connect
This product is everything they said it was. It was very easy to install my Ford transit T250 handles great now in my trailer hitch. It’s not dragging the ground. Thank you for a great product.
by:
2000 Ford F-350 Super Duty
Order and delivery was easy and quick. Installation instructions were clear and was an easy install. Great product.
by:
When I'm occasionally towing long distances it helps my Ram 1500 a lot. However, there's no psi happy spot for a smooth factory ride after the towing ceases and daily commutes return.
by:
Product was exactly as described delivered fast and easy to install. Only two bolts didn’t fit. No problem had some spare ones that worked. Would definitely recommend this product and company
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.
by:
I got it to work but the J Hooks that came with the kit were extremely short and I didn't want to wait for a new part but I made it work
by:
Lifts the truck back to normal with a heavy load. Feels so much safer on twist and turns and even just pulling into the store.
by:
2020 Dodge Ram Pickup
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:
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:
Thanks Ashley. I did not open yet wait next week Friday I work on van
by:
2016 Chevrolet Silverado 1500
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:
So far so good two trips with camper and worked great !
by:
Great quality!
by:
Pontiac Montana
Easy install. Will pull trailer 3000 miles on vacation and see how it performs to Montana on highways and Forest Service roads.
by:
2013 Ram 2500
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:
The brackets are not built heavy enough
by:
1995 Ford F-250 and F-350
haven't received or used it yet but pretty darn excited
by:
Easy to install and looks like it’s a high-quality product
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Info for this part was:

Employee Andy C
Installed by:
Andy C
Employee Anthony G
Edited by:
Anthony G
Employee Kim H
Written by:
Kim H

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