QA1 Precision Products Spring, CR-SI Hight Travel 2-1/2" ID 14" X 150

2 1/2" I.D. Coil Springs 

Available in a chrome plated or silver powder coated finished, QA1's 2.5" I.D. Coil Springs are offered in 6" to 14" free length. QA1's springs are strong, consistent and have a long life because they are made with the highest quality materials. A lifetime guarantee ensures that all QA1 springs will stay within 2% of the original free height and rate under normal operating conditions.

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.

Squared Ends
All QA1 springs are ground at both ends to ensure straight, consistent and accurate operation.

Protective Coated
QA1 springs are either silver powder coated for excellent longevity, or 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.

Lifetime Guarantee
All QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions.

Technical Specifications

Spring Rate Charts 

The charts below are a general guideline for selecting spring rates. Spring rates may vary depending on applications, usage and personal preference.

Average Street Rod Weight
The following charts provide general guidelines to determine the approximate weight of the most popular street rods. Of course, each car is different so it is ideal to actually weigh the front half and the rear half of your vehicle. Average car weights listed are with driver, automatic transmission, small block Chevrolet V-8, full upholstery and all normal street equipment (such as a spare tire and gas in the tank). Fiberglass cars weight the same as steel. Stripped or lightened cars will weight less. Extra passengers will add to the weight.