Conventional Spring 13in x 5in x 150#

The SWIFT SPRINGS Conventional Spring is a load-bearing suspension component designed for vehicles that require precise spring rate control and consistent ride geometry. This coil spring is ideal for applications such as building competition rigs, restoring classic vehicles, or upgrading stock suspension systems.

Engineered from high-carbon alloy steel wound to exacting tolerances, this spring ensures consistent load curves across repeated compression and extension cycles. With a spring rate of 150 pounds, it provides moderate load support and controlled deflection, which are critical for maintaining handling balance and chassis stability.

This spring is particularly beneficial for custom suspension builds, street-to-strip applications, and platform swaps where OEM springs may lack the necessary stiffness or geometry. Mechanics often pair it with adjustable dampers to fine-tune corner weights and achieve predictable transient responses.