King Shocks Coil Springs 3.0 ID 18x300lb

King Shocks Coil Springs 3.0 ID 18x300lb King Shocks high-performance coil springs — engineered for durability, precise ride control, and consistent off-road performance. The 3.0" inner diameter (ID) 18 x 300lb springs are designed to deliver reliable support and progressive spring rate for trucks, SUVs, and race vehicles equipped with King shock systems. Inner Diameter: 3.0" (compatible with King 3.0 shock bodies) Free Length: 18" for increased travel and suspension articulation Spring Rate: 300 lb/in — ideal balance of load support and comfort Durability: Heat-treated, shot-peened, and powder-coated for corrosion resistance Application: Off-road, racing, lifted trucks, and custom suspension setups These springs provide predictable handling, improved wheel control, and long service life under repeated harsh conditions. Perfect for builders and enthusiasts seeking OEM-quality fitment with enhanced performance. Key benefits: consistent spring rate, reduced fade, easy installation, and seamless compatibility with King 3.0 series shocks. Upgrade your suspension for better stability, ride quality, and confidence on rough terrain.