5inodx10.5in x 175# Rr Spring

The 5inodx10.5in x 175# Rr Spring is a heavy-duty rear suspension component engineered for vehicles requiring enhanced load-carrying capacity and improved handling under demanding conditions. This rear spring is designed for builders and mechanics working on truck modifications, towing setups, or performance suspension upgrades where stock springs fail to provide adequate support. Whether you're reinforcing a vehicle for hauling capacity or tuning a custom build, a quality replacement rear spring is essential to maintaining proper ride height, axle control, and chassis geometry.

With a 175-pound spring rate, this rear spring delivers the stiffness needed to resist deflection under load while maintaining predictable suspension response during acceleration, braking, and cornering. The 5-inch outer diameter and 10.5-inch body length are precision specifications that determine fitment and load distribution across the suspension contact points. A stiffer spring rate reduces squat during acceleration and dive during braking, critical for vehicles carrying heavy payloads or towing trailers. The 6.1-pound weight reflects the robust steel construction required to cycle millions of times without fatigue failure, ensuring long-term reliability in both daily driving and performance applications.

This spring suits mechanics and enthusiasts upgrading leaf spring suspensions on light-duty and mid-size trucks, utility vehicles, and custom builds where load support is paramount. Proper installation requires matching spring rate to vehicle weight and intended use—a 175# spring prevents sagging under loaded conditions while maintaining factory ride quality when unloaded. Always verify mounting hardware, perch angles, and axle alignment before installation to ensure the spring performs as designed. Pairing this rear spring with complementary front suspension geometry and shock tuning delivers balanced handling and predictable vehicle dynamics across varied driving scenarios.