HEIDTS Superide Billet Coil-Over Shocks for Mustang II IFS. These shocks provide the highest quality ride characteristics for your Mustang II front end. They are designed for high performance comfort, with increased travel for better ride characteristics. Aluminum body has a bright anodized finish. 5/8” centerless ground solid piston rod, 10 position rebound valving adjuster. Spring height adjustment is by threaded spring seat and locking ring.