What Pacbrake Air Bag Kit Fits The 2025 GMC Sierra 2500?
Updated 09/26/2025 | Published 04/29/2025
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Question:
Hey there, I have a new 2025 GMC Sierra 2500, how do I know which air bag kit to use? PB56SV or PB36SV?
asked by: Wynn B
Expert Reply:
Hello Wynn, thanks for reaching out. The Pacbrake # PB56SV you mentioned is for the 2025 GMC 2500 but will only fit the AT4X models. If you do not have the AT4X, you have the following options to choose from:
- Pacbrake Alpha HD Air Bag Suspension Kit - Rear Axle - 5,000 lbs # PB85RV
- Pacbrake Alpha HD Pro Air Bag Suspension Kit w/ Internal Jounce Bumpers - Rear Axle - 5,000 lbs # PB25RV
- Pacbrake Alpha XD Air Bag Suspension Kit - Rear Axle - 7,500 lbs # PB52RV
For bumper pull or 5th wheel towing, the # PB25RV will be your best bet. If you are haling a truck be camper or heavy constant load in the bed, do the # PB52RV.
Please let me know if there is anything else I can do to help.
Product Page this Question was Asked From
Pacbrake Alpha HD Air Bag Suspension Kit - Rear Axle - 5,000 lbs
- Vehicle Suspension
- Towing/Load Leveling
- Air Springs
- Suspension Only
- Heavy Duty
- Rear Axle Suspension Enhancement
- Pacbrake
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Jesse M.
9/26/2025
Hey Wynn, did you find the right air bag kit for your Sierra 2500? I'm curious to know which option worked best for you, as it could help others in a similar situation.