If you own a Chevy Silverado 1500, you already know it is a capable half-ton truck for daily driving, highway cruising, and light-to-medium work. But its factory rear suspension can struggle with heavy towing and hauling.
Chevy tunes the Silverado 1500’s rear leaf springs for a comfortable ride when the truck is empty. Under a heavy trailer or bed load, however, the rear suspension may compress and cause noticeable squat. For owners seeking adjustable rear support, Chevy Silverado air suspension kits offer a practical way to help reduce rear-end sag during towing and hauling.
Last weekend, I hooked up my 26-foot travel trailer for a family camping trip. The moment the tongue weight hit the hitch, my Silverado suffered from the dreaded "squat." The rear dropped about three inches, the front end pointed toward the sky, and the steering felt floaty during the drive. Every highway bump also sent a shudder through the chassis.
I knew I needed a suspension upgrade, but I didn't want to permanently stiffen the ride with helper springs. I also definitely didn't want to drill into my truck's frame.
That’s when I decided to install the RETRUE 5,000 lbs Air Suspension Kit. This RETRUE Premium air suspension kit for Silverado 1500 features a bolt-on, no-drill design. It provides adjustable rear support under load without requiring permanent frame modifications. Here is my installation experience and an overview of its towing performance.
Why I Chose RETRUE Over Traditional Brands
When shopping for air bags, many truck owners immediately compare established suspension brands. After spending hours researching options and reading truck owner discussions, RETRUE stood out as an alternative worth considering. I compared different air suspension kits for trucks based on load support, adjustability, installation requirements, and overall value.
Three things sold me on RETRUE:
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5,000 lbs Load-Leveling Support: The system provides up to 5,000 lbs of supplemental suspension support for towing and hauling. This capacity does not increase the truck's factory payload, GVWR, GAWR, or towing ratings.
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No-Drill Design: The compatible kit uses factory mounting points on the Silverado's frame and axle. This avoids unnecessary drilling and permanent modifications.
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Incredible Value: You get heavy-duty engineering, rugged mounting brackets, and durable air springs without paying a premium for a legacy brand name.
RETRUE also offers a standard RAS2609 air suspension kit for 2019–2026 Silverado and Sierra 1500. This provides another option for truck owners comparing regular and premium air spring suspension kits. Review the included components and product specifications before choosing your setup.
Fitment is just as important as load capacity. The 2019–2026 new-body Silverado 1500 kits are designed for compatible 2WD and 4WD gasoline models. They are not compatible with 3.0L Duramax diesel configurations or the 2019 Silverado 1500 LD. Always check your model year, trim, engine, and suspension configuration before ordering.
If you own an earlier-generation Silverado, the RETRUE RAS2430 air suspension kit for 2007–2018 Silverado and Sierra 1500 trucks is another option. This kit also supports compatible 2019 Silverado 1500 LD applications. Check the trim-specific exclusions before purchasing.
The DIY Installation: A Smooth, No-Drill Experience
I tackled the installation right in my driveway with a standard socket set, a floor jack, and jack stands. Because RETRUE engineered this kit specifically for compatible Silverado 1500 applications, installation does not require drilling or permanent frame modifications.
Step 1: Prep and Safety
I chocked the front wheels, raised the rear of the truck, and supported it securely with heavy-duty jack stands. I then removed the rear wheels to create enough working space around the suspension.
Step 2: Remove Factory Bump Stops
The factory foam jounce bumpers are held in place by mounting bolts. I removed them on both sides to prepare the factory mounting locations for the RETRUE brackets.
Step 3: Assemble the Air Springs
On my workbench, I attached the upper and lower mounting brackets to the air bags using the supplied hardware. The brackets felt impressively sturdy and featured a clean, corrosion-resistant finish.
Step 4: Bolt to the Frame and Axle
Because it uses a bolt-on design, the upper bracket aligned with the factory bump stop mounting points on the frame. I secured it with the included hardware. The lower bracket sits over the axle housing and is secured with the supplied U-bolts. No drilling, no welding, no permanent modifications.
Step 5: Route the Air Lines
I ran the 1/4-inch air lines from each air bag toward the rear bumper. I mounted the inflation valves near the license plate for convenient access when adjusting pressure.
Pro-Tip for DIYers: Keep your air lines away from the exhaust pipe and sharp or moving suspension components. Use suitable fasteners to secure the lines along the frame. Leave enough clearance for normal suspension movement.
From start to finish, the installation took me just under two hours. The mounting hardware aligned well, making the process relatively straightforward.
Real-World Performance: The Before and After
To test the system, I hooked up my travel trailer again and put the RETRUE air suspension kit through its paces.
The Loaded Test (55 PSI)
I inflated the air bags to 55 PSI using a portable compressor. The transformation was noticeable. The rear end of the Silverado lifted closer to its original ride height, helping the truck sit more level under load.
On the highway, the difference was clear. The floaty feeling in the steering wheel was reduced, and the truck felt more planted. When large semi-trucks passed me, the lateral body sway also felt less pronounced. Overall, the truck felt more predictable and controlled.
The Daily Commute Test (5–10 PSI)
The biggest worry most truck owners have is: "Will air bags ruin my ride when the truck is empty?"
The answer depends on the kit, installation, and pressure setting. When I unhitched the trailer, I reduced the air pressure to the recommended unloaded setting while maintaining at least the manufacturer's specified minimum pressure. The next morning, my truck remained comfortable during the daily commute without the permanently stiff feel associated with some fixed-rate suspension upgrades.
This adjustability is one of the main advantages of air bags suspension kits. Unlike fixed-rate helper springs, air spring suspension systems let drivers adjust rear support as towing and hauling conditions change.
Final Verdict: Is the RETRUE Kit Worth It?
If you use your Chevy Silverado 1500 for towing campers, hauling boats, or carrying heavy cargo, the RETRUE 5,000 lbs Air Suspension Kit is worth considering. Its adjustable air pressure provides supplemental rear suspension support, helps reduce squat, and adapts to changing loads.
When correctly matched to your truck and installed according to the manufacturer's instructions, an air suspension kit can help maintain ride height and improve towing control. Its bolt-on design also makes DIY installation possible for owners with suitable tools and mechanical experience.
For drivers researching the best air bag suspension kit for Chevy Silverado 1500 applications, start by checking vehicle compatibility, load support, pressure adjustment, and installation requirements. The right setup should match your actual towing and hauling needs.
What About You, Fellow Truck Owners?
Have you experienced rear-end sag while towing with your Silverado? Are you considering an air suspension upgrade? Share your experience and questions in the comments below!
Related reading: Air suspension fitment checks for stock and modified trucks.
