Barrel Spring 12in x 2.5in x 325#

The SWIFT SPRINGS Barrel Spring 12in x 2.5in x 325# (model 120-250-325 B) is a coil suspension component designed for custom vehicle builds, off-road recovery rigs, and performance-oriented platforms requiring precise spring rate tuning. This 325-pound-force barrel spring delivers consistent load support across a wide range of compression cycles, making it ideal for vehicles engineered with adjustable ride heights and variable payload demands.

The 12-inch effective length and 2.5-inch outside diameter are standard dimensions for coil-over suspension assemblies used in lifted trucks, custom-built off-road platforms, and competition-grade vehicle suspensions. A 325-pound spring rate provides moderate resistance suitable for mid-range load conditions where both ride quality and load-carrying capability must be balanced. The compact footprint allows integration into space-constrained suspension towers while maintaining adequate deflection range for articulation and ground clearance adjustments.

This barrel spring configuration is commonly specified in vehicle restoration projects, ranch work trucks, overlanding builds, and motorsport platforms where OEM suspension geometry cannot accommodate the vehicle's intended use. Buyers selecting a 325# spring rate should verify compatibility with existing damper assemblies, frame mounts, and total suspension system load capacity. Proper installation requires accurate preload adjustment and alignment to ensure even weight distribution and prevent premature wear.

Spring rate selection depends on vehicle curb weight, payload requirements, and intended terrain. The 325# rate sits in the mid-range spectrum—lighter than heavy-duty or lifted truck springs, stiffer than stock or unmodified suspension rates. Cross-reference this component with your suspension manufacturer's load calculation table to confirm compatibility before ordering.