Is A Spacer Required For Air Bags On A 2021 GMC Sierra 3500 AT4 SRW
Updated 10/28/2024 | Published 10/20/2024
Products Featured in This Question
Question:
I have a 2021 gmc Sierra 3500 at4 SRW do i need any spacer I’ve read mixed reviews if I need a spacer or not I have the 2 inch spacer already. And have all parts just want to make sure before I start assembling bags. Thanks
asked by: Mike P
Expert Reply:
Hello Mike, thanks for reaching out. Since you already have the parts, the best way to determine whether or not you will need a spacer is to install the brackets and measure the distance between. Then subtract the height of the air bag and see how much space you need to cover. If the gap is 1" or less, you will not need a spacer. If the remaining gap is more than 1", you will need to add a spacer. For the Air Lift 5000 or 7500 air bag kits the correct 2" spacer is part # AL52420.
Product Page this Question was Asked From
Air Lift LoadLifter 5000 Air Helper Springs - Rear Axle
- Vehicle Suspension
- Towing/Load Leveling
- Air Springs
- Suspension Only
- Heavy Duty
- Rear Axle Suspension Enhancement
- Air Lift
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Suspension Enhancement
- Search Results: mirror
- Shop: Towing Mirrors
- Shop: Longview Custom Towing Mirrors - Slip On - Driver and Passenger Side
- Shop: CIPA Custom Towing Mirrors - Slip On - Driver Side and Passenger Side
- Shop: Firestone Ride-Rite Air Helper Springs - Double Convoluted - Rear Axle
- Shop: Air Lift Universal Air Spring Spacers for LoadLifter 5000 and 7500XL - 2" Lift - Qty 2
- Shop: Firestone Ride-Rite Air Helper Springs - Double Convoluted - Rear Axle
- Article: Best Air Bag Suspension 2025
- Q&A: Looking For Airbags For My 2023 Chevy 2500HD With Curt Gooseneck Hitch Installed
- Article: Choosing the Right Suspension Kit for Your Truck and Trailer
- Q&A: Recommended Heavy Duty Air Bags for a 2024 Chevy Silverado 2500
- Article: Should You Add an Air Compressor to Your Air Bags?
- Q&A: What Are The Benefits Of Airbags With And Without Internal Jounce Bumpers?
- Q&A: Recommended Air Bag Kit With Compressor for 2026 Chevrolet Silverado 2500
- Q&A: Highest Capacity Air Bags for a 2024 GMC Sierra 3500
- Q&A: Best Air Bag Kit And Compressor For 2025 GMC Sierra 3500 SRW
- Q&A: Can I Use An Air Lift Air Bag Kit With A B&W Gooseneck Hitch On A 2022 Chevy 2500?
- Article: Trailer Wiring Diagrams
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: RV Sway Control, Stabilization, and Suspension Enhancement
- Article: Breakaway Kit Installation for Single and Dual Brake Axle Trailers
Mike P.
10/26/2024
So I have the bag installed between the axel and bump stop bracket there is a 2 inch gap from the bracket to the bump stop bracket the truck is lifted so the suspension is hanging as low as it can go. Do I need the 2 inch spacer or is this fine I can’t find anywhere that say to do so or not and I don’t want to get to far into it and have to start over thanks