13in. x 5in. x 300# Rear Spring

The 13in. x 5in. x 300# Rear Spring from Landrum Springs is a heavy-duty coil spring designed for serious truck and heavy vehicle applications. This spring is ideal for mechanics and enthusiasts looking to reinforce or replace factory suspension systems, particularly in vehicles that require increased payload capacity or towing capabilities.

Manufactured from high-carbon steel, this spring is engineered to provide a spring rate of 300 lbs/in, meaning it requires 300 pounds of force per inch of compression. This design ensures proper ride height and load support, especially when OEM springs have weakened or when a stiffer suspension is needed for custom weight distribution. The robust construction resists fatigue cracking under repetitive load cycles, making it suitable for demanding applications.

Ideal for work trucks, off-road rigs, and custom builds, this rear spring is typically installed in pairs on dual-spring rear axles common to pickup trucks and commercial vehicles. Its dimensions and construction make it compatible with leaf-spring eliminator kits and modern coilover conversions, ensuring that it meets the needs of various suspension upgrades.