QA1 3-1/2in ID Tapered High Travel Spring - 10in Length x 550lbs/in - Silver Powder Coated

Starting with a chrome silicon alloy spring wire allows QA1 to use fewer coils and a smaller wire diameter, resulting in a lighter spring with increased travel. This specific spring measures 10 inches long with a 550 lb/in rate and a 3-1/2 inch inner diameter, designed for high travel applications. The lighter weight helps reduce unsprung mass, allowing your suspension to react more quickly to road inputs for better performance.

The high-grade chrome silicon material, combined with careful heat-treating and shot peening processes, contributes to improved fatigue life. These springs are built to be compressed to coil-bind without changing their spring rate or free height. The silver powder coat finish not only looks good but also adds durability, and both ends are ground flat for straight, consistent operation. QA1 proudly manufactures these springs in the USA, and they are lifetime guaranteed to stay within 2% of their original free height and rate under normal use.

This spring is designed to fit a range of vehicles, including popular models like the Chevrolet Chevelle, Pontiac GTO, and Oldsmobile Cutlass. It's a solid option when you're looking to optimize your suspension setup.