5.5in x 12in x 200# Rear Spring

The 5.5in x 12in x 200# Rear Spring by Suspension Springs is a heavy-duty coil spring engineered for vehicles requiring substantial load support and ride height management. Built for trucks, SUVs, and performance vehicles that demand reliable suspension geometry under demanding conditions, this rear spring delivers consistent performance whether you're towing, hauling payload, or maintaining factory ride quality. The 200-pound spring rate makes it ideal for applications where factory springs have fatigued, sagged, or where additional support is needed to restore proper suspension travel and prevent bottoming.

Engineered with precision coil geometry, the 5.5-inch outer diameter and 12-inch free length ensure proper fitment in tight rear suspension packages while maintaining adequate compression stroke for daily driving and moderate articulation. The 200-pound spring rate—expressed as the force required to compress the spring one inch—provides firm support without introducing excessive harshness, striking a practical balance between load capacity and ride comfort. This specification is critical for vehicles operating near GVWR limits or experiencing chronic suspension sag, as a properly matched spring rate restores proper ride height, improves handling response, and reduces stress on shock absorbers and chassis components.

Mechanics and vehicle enthusiasts frequently pair this rear spring with matching front springs or as a direct replacement during comprehensive suspension rebuilds, ensuring symmetric weight distribution and predictable handling characteristics. Verify fitment against your vehicle's suspension architecture—specifically the mounting perch spacing and desired ride height—before installation. Installation requires proper spring compression tools and alignment verification to prevent premature wear on bushings and shock absorbers; professional installation is recommended for optimal results and warranty coverage.