Spring Rear 18in x 5in x 50# Platinum

The Spring Rear 18in x 5in x 50# Platinum from EIBACH is a precision coil spring engineered for rear suspension tuning on performance and street vehicles. This Platinum Series spring is designed for users who demand consistent ride quality, improved handling geometry, and the durability to withstand both daily driving and spirited use. EIBACH's reputation for manufacturing OEM-quality suspension components makes this spring a trusted choice for enthusiasts and professionals seeking reliable spring rate consistency without compromise.

Constructed from high-strength steel and finished in EIBACH's proprietary Platinum Powder Coat, this conventional coil spring features an 18-inch length, 5-inch outer diameter, and a 50 lb/in spring rate specifically calibrated for rear axle applications. The Platinum Powder Coat finish provides superior corrosion resistance and durability in harsh road conditions, while the consistent 50 lb/in rate ensures predictable suspension behavior and load support. At 4.7 lbs, the spring's weight is optimized to reduce unsprung mass while maintaining structural integrity, allowing for improved vertical compliance and steering response in cornering situations.

This rear spring is ideal for vehicles requiring factory-compatible or performance-oriented suspension upgrades, including street cars, sport sedans, and light-duty trucks. Installation pairs best with complementary front springs and dampers to maintain balanced front-to-rear suspension geometry and achieve designed handling characteristics. Verify vehicle application and spring compatibility with your specific platform before purchase; EIBACH springs are engineered to work in matched pairs or sets to optimize performance across axles.