Spring Rear 16in x 5in x 150# Platinum

The Spring Rear 16in x 5in x 150# Platinum from Eibach represents a precision-engineered suspension component designed for vehicle owners seeking to refine ride quality and handling dynamics. As a rear coil spring with a 150-pound spring rate, this component is engineered for stock or mildly modified vehicles where maintaining comfort while improving cornering response is the priority. Built by Eibach—a manufacturer with decades of suspension expertise—this spring delivers the predictable, consistent performance that serious enthusiasts demand when upgrading their chassis.

The 150# spring rate denotes the force (in pounds) required to compress the spring one inch, making it ideal for vehicles that benefit from a balanced suspension tune without excessive stiffness or harshness. The Platinum finish indicates Eibach's premium corrosion-resistant coating, protecting against salt spray, road chemicals, and moisture—critical for longevity in harsh climates. At 16 inches in length with a 5-inch coil diameter, this spring maintains proper geometry and clearance while providing the structural integrity needed for daily driving combined with spirited weekend driving. The 6.35-pound weight reflects a high-quality steel construction that resists fatigue cracking over tens of thousands of load cycles.

This rear spring is best suited for enthusiasts upgrading both rear springs as part of a complete suspension refresh, ensuring matched damping characteristics and predictable vehicle balance. Installation requires proper spring compressors and alignment expertise; working with a qualified suspension technician is recommended to ensure correct seating and safety. The 150# rate pairs effectively with OEM or aftermarket dampers on sport-compact and mid-size vehicles, delivering noticeable improvement in body roll control and tire contact during aggressive cornering while preserving compliance on rough surfaces.