Arnott C-3185 Air Spring to Coil Spring Conversion Kit - Front and Rear

GM GMT900 Coil Spring Conversion Kit

Arnott C-3185 is a premium coil spring conversion kit for long wheelbase 2007-2014 GM trucks and SUVs with factory electronic suspension. It replaces the original air/electronic setup with a passive suspension package built for factory ride height, stable handling, and consistent comfort.

Designed for applications such as the Cadillac Escalade ESV, Chevrolet Suburban 1500, and GMC Yukon XL 1500, this Arnott NEW line kit is built around front and rear monotube sport shock absorbers and rear coil springs tuned to work together. The included Electronic Bypass Module helps eliminate suspension fault codes after conversion.

Key Features

• Air spring to coil spring conversion for long wheelbase GM GMT900 chassis vehicles
• Front and rear monotube sport shock absorbers custom-valved for handling and stability
• Rear coil springs made from US steel
• Passive suspension design for vehicles originally equipped with electronic suspension
• Electronic Bypass Module included to clear suspension fault messages
• Standard replacement grade with black steel springs

Product Details

Arnott C-3185 is engineered as a complete suspension conversion solution for later-model GM SUVs and trucks with the long wheelbase configuration. The kit replaces the factory electronic suspension with a passive setup that uses steel rear coil springs and matched monotube shocks to restore ride height and deliver controlled road manners. Arnott’s NEW product line focuses on replacement components built for direct application coverage, and this kit follows that approach for 2007-2014 GM platforms.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Suspension fault codes on the dash after electronic suspension failure
• Leaking or worn factory air suspension components
• Uneven ride height on long wheelbase GM SUVs and trucks
• Excessive body motion from aging electronic dampers
• Reduced ride consistency caused by failing factory suspension parts

Installation Notes

Compatible With 2007-2014 Cadillac Escalade ESV, front and rear; 2007-2014 Chevrolet Suburban 1500, front and rear; 2007-2014 GMC Yukon XL 1500, front and rear; 2007-2013 Cadillac Escalade EXT, front and rear; and 2007-2013 Chevrolet Avalanche, front and rear. This kit is for later-model GM SUVs with the long wheelbase and should be matched to the vehicle’s original suspension configuration before installation.

After conversion, the Electronic Bypass Module is used to address suspension-related fault codes. Verify all suspension components are installed and torqued to specification, then confirm proper ride height and system operation.

Quality Assurance

Arnott’s C-3185 uses steel spring construction, custom-valved monotube shocks, and a passive conversion layout to provide a direct replacement path for factory electronic suspension systems on supported GM applications.