QA1 3-1/2in ID Tapered High Travel Spring - 10in Length x 600lbs/in - Silver Powder Coated

This QA1 high travel spring is a direct replacement for your coilover setup, offering a 600 lb/in spring rate and a 10-inch length. It's designed to fit a range of vehicles, including popular models like the Chevrolet Chevelle, Oldsmobile Cutlass, and Pontiac GTO. The spring's construction uses a chrome silicon alloy wire, which allows for fewer coils and a smaller diameter. This results in a lighter spring with more space between the coils, giving you increased travel and reduced unsprung weight for better suspension response.

QA1 manufactures these springs with careful heat-treating and post-processing to ensure improved fatigue life. The coil design lets the spring compress fully without changing its rate or free height. Both ends of the spring are ground flat for straight, consistent operation, and the silver powder coat adds durability and a clean look. Each spring is clearly marked with its free length and spring rate for easy identification.

QA1 backs these springs with a lifetime guarantee, promising they'll stay within 2% of their original free height and rate under normal use. They are proudly made in the USA from high-quality chrome silicon steel.