RETRUE Rear Air Bag Suspension Kit for Silverado/Sierra 2500HD & 3500HD (2011–2026) — 5,000 lb Load-Leveling, No-Drill Install

This rear air-ride kit replaces conventional springs with durable air springs that let you fine-tune ride height and firmness for towing, hauling, or everyday driving. Designed to match OE mounting points on 2WD and 4WD chassis, the kit fits Silverado and Sierra 2500HD and 3500HD models from 2011 through 2026 and serves as a direct alternative to the Firestone Ride-Rite 2613 configuration.

How does this kit help when towing or carrying heavy loads?

The air bags deliver progressive support that increases spring rate as weight rises, preventing sag and restoring proper ride height under load. Adjusting air pressure balances the truck front-to-rear and minimizes excessive squat, improving stability when towing trailers or hauling payloads.

• Load-leveling capacity: up to 5,000 pounds total
• Pressure range: adjustable from 5 to 100 psi for precise tuning
• Reduces rear sag, roll, and vibration during heavy use

Do I need to drill or modify the frame to install it?

No frame drilling is required; the RETRUE kit is engineered with pre-drilled mounting holes and uses factory-compatible brackets for a simpler install. All hardware and clear instructions are included so experienced DIYers can complete the job with common tools, while shops will find the fitment straightforward.

• Pre-drilled plates mean no permanent frame holes
• Comprehensive labeled parts and installation instructions included
• Automated tools reduce install time but are not necessary

How do I control ride comfort and stability with this system?

Ride feel is controlled by adjusting air pressure in each bag, allowing you to tune firmness for unloaded comfort or firm support when hauling. Small pressure changes produce noticeable differences, so you can dial in balance side-to-side and front-to-rear for the best handling under different loads.

• Fine-tune pressure between 5 and 100 psi
• Use higher psi for heavy loads, lower psi for everyday driving
• Even pressure between sides improves lateral stability

What durability and support can I expect from RETRUE components?

The components are designed for heavy-duty use with reinforced air springs and corrosion-resistant hardware to withstand road conditions and towing demands. The kit replaces worn or inadequate factory springs and is sized specifically for 2500/3500 chassis to retain proper geometry and clearance.

• Heavy-duty air bags for repeated load cycles
• Corrosion-resistant brackets and hardware for long service life
• Vehicle-specific design to preserve suspension travel and clearance

Who is this for: the RETRUE Rear Air Bags Suspension Kit is intended for Silverado and Sierra 2500HD/3500HD owners who tow or haul frequently, drivers who want an adjustable alternative to stiffer fixed-rate springs, and installers seeking a no-drill, truck-specific upgrade. It suits owners of 2011–2026 Chevy Silverado and GMC Sierra heavy-duty models (2WD and 4WD) who want improved load handling, safer highway stability when loaded, and the ability to tune rear ride height quickly and reliably.