Coil-Rite Air Helper Spring Kit for 2011 GM Full-Size SUVs

Firestone Industrial Products’ new Coil-Rite air helper spring kit (part No. 4186) designed specifically for 2011 General Motors full-size SUVs. Firestone’s Coil-Rite air helper springs fit inside a vehicle’s existing coil spring and can be adjusted for varying loads and road conditions by increasing and decreasing the air pressure within the helper springs, which is as easy as adjusting the air pressure in a tire. The no-drill Coil-Rite kit uses the truck’s factory holes for an easy installation that typically takes less than one hour. The kit comes with a two-year limited warranty and the brackets, air springs, hardware, air lines and separate valves necessary for installation.

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