QA1 High Travel Coil-Over Spring - 2-1/2" I.D. x 10" Tall - 500 lb. 150 Degree Hose End Chevrolet: P30 Series 63 -

Chevrolet: P30 Series 63 - 67 4

Mounts to flat surfaces

Thread Size on Drain Plug: 1/2"-16

Conversion

26089 and 955 springs

QA1 High Travel Coil-Over Spring - 2-1/2" I.D. x 10" Tall - 500 lb. 150 Degree Hose End Chevrolet: P30 Series 63 -Powder Coated, Chrome Appearing Silicon Manganese SteelAll QA1 springs are manufactured using the highest quality chrome silicone. This material offers high strength, consistency and longer life. Cold Wound Heat Treated Shot PeenedAll QA1 springs go through intensive manufacturing processes to ensure consistency, accuracy and durability. Squared EndsAll QA1 springs are ground at both ends to ensure straight, consistent and accurate operation.