Will The Pacbrake Alpha HD Air Bag Suspension Kit PB85RV Fit A 2022 GMC Sierra 3500 Denali Dually?

Updated 09/29/2025 | Published 08/29/2025

Question:

Will these fit the DRW Denali?

asked by: Joe B

Expert Reply:

Hi Joe!

The Pacbrake Alpha HD Air Bag Suspension Kit - Double Convoluted - Rear Axle - 5,000 lbs # PB85RV will indeed fit a 2022 GMC Sierra 3500 Denali dually. It actually fits both the single rear wheel and dual rear wheel as well as 2 wheel drive and 4 wheel drive options. The only thing it won't fit is Chassis Cab models and vehicles with (aftermarket) Curt 5th wheel packages.

What are you towing with your Sierra? And have you thought about a compressor kit? We have a bunch of those if you need.

expert reply by: Lazer S

Joe B.

9/1/2025

We are pulling a 45 ft. Vengeance Rogue toy hauler. I was wanting to make the ride just a little smoother. Bumps and pot holes seem to hit pretty hard. I'm looking for a compressor one of these days. One I can operate with a remote. I don't want to use my smartphone.

Lazer S.

9/2/2025

@JoeB Cool camper! What kind of toys are you hauling? Sounds like you are probably hitting the factory bump stops, which would definitely make bumps and pot holes pretty jarring. These will absolutely help with that. As to compressors, I have two good options listed below. Both use a remote instead of your phone, which I also prefer (I still miss my dumbphone). The only difference is the Air Lift is a single path (fill both bags at the same time) and the Pacbrake is dual path (fill each bag independently). Air Lift WirelessONE Compressor System for Air Helper Springs - Remote - Bluetooth - Single Path # AL25980 Pacbrake Bravo Universal Wireless Air Spring Controls w/ Compressor and Remote - Dual/Single Path # PB56MV

Joe B.

9/2/2025

@LazerS The wife rides a polaris sportsman 570. I have the sportsman XP 1000. Prefer the 4 wheelers over the side by sides. I also modified our waverunner trailer with a hinge in the tongue so it would fit. We use a winch to pull it up and down the ramp. We can ride the dunes and the lake. Ill look at the compressors. Do they hold up in the cold winter, or do they freeze up. How do they keep the air dry?

Lazer S.

9/16/2025

@JoeB Sorry for the delay, Joe. I posed your question to Air Lift and PacBrake, but only got a partial response from Air Lift and nothing from PacBrakes. Here's what Air Lift sent back: They do hold up and do fine in the winter. The key is where they get positioned on the vehicle. Putting them out of direct water / splashing would be key. Some folks find a place under the hood or other areas that remain dry. Definitely not the best answer in the world. However, we have been selling compressors for a long time and I can honestly say I haven't heard of any issues with moisture from the air being an issue in the decade I have been doing this. Now if it's submerged, that's a different story. I did have a guy back his boat down a ramp after installing one near his rear bumper on the frame and that did destroy it. Don't why he put it there, so don't do that!

Lazer S.

9/29/2025

@Joe They do not have isolator pads, so you would need to come up with a way to do that. Shouldn't be too difficult to come up with something though. The Air Lift WirelessONE Compressor System for Air Helper Springs - Remote - Bluetooth - Single Path # AL25980 has 20 feet of hose, so I don't think you would need extra to run the compressor in the bed, but you could if you wanted to. I have 3 different lengths listed below that will work with this compressor. Air Lift 1/4" Synflex Air Line Tubing - 50' Long, Black # AL23RV Air Lift 1/4" Synflex Air Line Tubing - 30' Long, Black # AL73RV Air Lift 1/4" Synflex Air Line Tubing - 20' Long, Black # AL63RV And again, I never heard back from Pacbrake, so I don't know what length the hose is in that one. As to the weight capacity of the bags, you could go with the Air Lift LoadLifter 7500 XL Air Helper Springs - Rear Axle # AL57541, but I honestly think they are a bit overkill. Especially with a 3,000 pin weight. I think you will be much happier with the Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers - Rear Axle # AL88341. Plus they are less expensive and can be run at zero psi, so they wont mess with your unloaded ride.