Helper Spring C/O 2.5in 5.0in Tall 100lb

The Helper Spring C/O 2.5in 5.0in Tall 100lb from SWIFT SPRINGS is a progressive-rate auxiliary spring system engineered for vehicle suspension tuning and tactical vehicle platforms. Originally developed for law enforcement and military motor pool applications, helper springs reduce chassis sag under load while maintaining ride quality during unloaded operation. This 100-pound spring is designed to work in tandem with primary suspension components, preventing bottoming and extending the service life of factory dampers in high-load scenarios such as duty vehicle deployments or equipment transport.

Built to SWIFT SPRINGS' specifications, this helper spring features a coilover (C/O) design with a 2.5-inch compressed height and a 5.0-inch free standing height, rated at 100 pounds of spring force. The compact footprint (4.5 x 4.35 x 7.5 inches) allows installation in tight wheel well and frame rail environments common to tactical support vehicles, trucks, and armored platforms. Weighing 1.79 pounds, the unit is lightweight enough for rapid field replacement while maintaining the material integrity required for sustained duty cycles. The progressive spring rate resists rapid compression, providing progressive load support that prevents metal-to-metal contact and maintains consistent suspension geometry.

This helper spring benefits vehicle operators, fleet maintenance technicians, and duty vehicle managers who require reliable suspension augmentation without full suspension replacement. Installation typically pairs with OEM or aftermarket coilover kits and is common in search and rescue, tactical team transport, and law enforcement utility vehicles that routinely carry crew, ballistic protection, and operational equipment. Compatibility verification with your vehicle's existing suspension geometry is essential before installation; consult suspension system documentation or an experienced suspension technician to confirm mounting bracket clearance and spring preload specifications.