UMI Performance Rear Spring Kit - Stock Height - Black - GM A-Body 1964-66 RS200220 All kits come complete with

All kits come complete with hardened parallel-ground washers and high quality nuts

Features: Easily install two DIS-4 Ignitions on late model Ford Engines

and tuned antennas

128" Jet size

Header and oil pan clearance maximized for easier maintenance and installation

UMI Performance Rear Spring Kit - Stock Height - Black - GM A-Body 1964-66 RS200220 All kits come complete withA spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading Sprint Cup chassis engineer, these springs are the best in the business. UMI's springs are designed to add modern handling and a crisp ride while maintaining the factory muscle car appearance. The rear springs are wound from 9254 CrSi premium wire and feature a linear 130 lb in rate. The linear rate provides