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Polyair Bellows Ultimate
The Bellows Ultimate load assist kits are designed for leaf sprung vehicles, providing adjustable air support to prevent rear-end sagging when loaded or towing. They ensure a smooth ride when unloaded and can be easily adjusted to handle varying loads, enhancing safety and handling.

Constructed with high-strength materials and easy to install, these kits offer a reliable solution for both standard and raised applications. Includes an internal bump stop for added peace of mind.

Adjustable Air Support
The Polyair Bellows kits offer air adjustability from 5-100 psi, allowing you to tailor the level of support for different load types and weights. This ensures a comfortable, smooth ride when unloaded and optimal handling and safety when carrying heavy loads.

Durable Construction
Built with superior 2-ply fabric reinforced rubber and ultra-high strength, corrosion-proof Zytel® Nylon end caps, Polyair Bellows are designed for long-lasting performance and reliability. Easy to install with illustrated instructions, these kits often do not require chassis drilling for most applications

Chevrolet

Chevrolet Silverado 2500HD (2019-2025) Polyair Bellows Ultimate Airbag Kit – Standard Height

Chevrolet Silverado 2500HD (2019-2025) ReadyLIFT Front Upper Control Arms