Mustang II Kit Springs
These polished and chrome plated springs fit perfectly with QA1’s Mustang II Pro Coil Kits. With a 3.5” upper I.D. and 2.5” lower I.D., these springs are offered in four rates with an 8” free length. Made with the highest quality materials, QA1 springs are strong, consistent and have a long life. All QA1 springs come with a lifetime guarantee to remain within 2% of their original free height and rate, so you know you're getting quality springs with QA1.
Chrome Silicon Steel (CrS)
All QA1 springs are manufactured using the highest quality materials for high strength, consistency and long life.
Cold Wound – Heat Treated – Shot Peened
All QA1 springs go through intensive manufacturing processes to ensure consistency, accuracy and durability.
All QA1 springs are ground at both ends to ensure straight, consistent and accurate operation.
The Mustang II Springs are polished and chrome plated for the ultimate in appearance.
Lengths and Rates Marked
All QA1 springs are clearly marked with the free length of the spring and spring rate for quick and easy identification.
All QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions.