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Heavy loads can make your truck squat, throw off your steering, and cause your headlights to aim too high. The Pacbrake Alpha SD air bag suspension kit adds up to 1,800 lbs of load support on the rear axle so your stance stays level and your handling stays sharp. It keeps braking steady and traction consistent whether you’re towing a trailer, hauling work gear, or packing up for a weekend trip.
No two hauls are the same, so it’s nice when your suspension can adapt. This system lets you adjust air pressure anywhere from 10 psi when unloaded to 100 psi when you’re fully packed. Add more air to keep things level under heavy weight or drop it down for smoother cruising when empty. It’s a quick way to fine-tune comfort and control without tools or guesswork.
You don’t have to sacrifice comfort just because you need load support. The sleeve-style air springs handle extra weight when needed but still ride comfortably when you dial the pressure back down. With a minimum 10 psi required, the truck stays composed and predictable whether the bed is stacked with cargo or completely empty.
Real roads and real loads demand strong gear. These air springs use one-inch thick anodized aluminum end caps and nylon-reinforced rubber that resists corrosion and cold-weather cracking. Precision laser-cut, powder-coated steel brackets bolt to factory points with Grade 5 plated hardware for added durability. Everything you need—air lines, push-to-connect fittings, manual valves, and mounting hardware—is in the box so you can get set up cleanly and confidently.
If you ever want to upgrade with onboard air, this kit already has standard ports and fittings built in. That makes it easy to add inflation controls down the road without replacing parts or modifying what’s there. For now or later, it’s a setup built with flexibility and long-term use in mind.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everyone, Steven here with etrailer.com. Today we're looking at our Pacbrake Alpha SD air bag suspension kit. It's what we call a sleeve style, and it's a rear axle application ready for 1,800 pounds. Now folks, these are custom fit, so make sure you're checking our fit guide here at etrailer.com. Be sure you're getting the right parts the first time for your specific setup. And you can call, chat us.
We'll be more than happy to assist you with that part or any other parts as well. Now, as you can see today, I just have these loosely fitted together on the table to kinda show you the size, shape, and everything. You will get everything pictured in the image here on the screen, as far as all the brackets, airlines, airline cutting tool, all the fittings, all the nuts, bolts, the clamps. Everything you need will come with this kit. So again, I just have this part on the table today just to kinda give you a visual about the size of these and everything.
1,800 pounds capacity, durable. The hardware and everything has been laser cut as far as the brackets. Everything's a nice powder coat finish. The bags are reinforce, or non-reinforced rubber that's gonna resist corrosion, and cold weather cracking, and those kinda things as well. So, a very nice kit.
(air wheezing) And as you can hear, air can go in and out whenever I'm pushing on it. Now, once you have this installed correctly, it is a manual inflation at the rear bumper of the vehicle. And again, everything here is just loosely fitting today for our viewing. So again, very nice kit from Pacbrake. It's gonna reduce rear end sag, absorb road shock, and keep your steering crisp and clean under load so you're not gonna be bouncing around like you probably are currently if you don't have something like this on your setup.
Well folks, that's gonna wrap it up for our look together. I'm Steven. Thanks for watching.
Ratings & Reviews
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Brooke M.
6/16/2025
Glad to hear that, Rob :) Everything looks great. What do you tow where you like having the extra suspension support ?