13in. x 5in. x 350# Rear Spring

The 13in. x 5in. x 350# rear spring from LANDRUM SPRINGS is engineered for vehicles requiring a heavy-duty suspension upgrade capable of handling increased payload capacity and sustained load support. Built for truck owners, fleet operators, and enthusiasts who regularly carry cargo, tow equipment, or operate in demanding terrain, this leaf spring restores proper ride height and load-carrying geometry that factory springs cannot maintain under continuous stress. Whether you're upgrading a pickup for work duty or enhancing a classic vehicle restoration, a 350-pound rated rear spring provides the foundation for controlled suspension performance.

This rear spring measures 13 inches in length with a 5-inch width, delivering the structural stiffness required to resist sagging when bearing loads that would compress softer OEM springs. The 350-pound spring rate indicates the load required to compress the spring one inch—a specification critical for matching your vehicle's weight distribution and preventing bottoming-out during acceleration, braking, or uneven road surfaces. LANDRUM SPRINGS employs proven leaf-spring metallurgy and heat-treating processes that resist fatigue cracking and permanent deformation, ensuring consistent performance across thousands of duty cycles. The compact package weighs just 8.8 pounds, making installation and handling straightforward for mechanics and DIY builders working on rear suspension assembly or complete spring replacement jobs.

This component suits light-duty to medium-duty trucks, commercial vehicles, and classic car restorations where suspension compliance and load capacity matter equally. Installation pairs the rear spring with compatible shackles, bushings, and U-bolts—verify your vehicle's spring perch configuration and leaf-spring eye diameter before ordering to ensure proper fitment. Professional mechanics and restoration shops rely on LANDRUM SPRINGS for OEM-equivalent quality and longevity, avoiding the premature sagging and handling issues common with underrated aftermarket alternatives. Confirm your application's spring rate requirement and mounting specifications with your vehicle's suspension schematic to achieve optimal ride quality and load handling.