418 Series shock bodies are manufactured from aircraft quality aluminum and then clear anodized for an attractive, durable and long lasting finish. The 418s feature a 5-position rebound damping adjustment for the perfect ride. The shock shafts are made from 4130 Chromoly steel that is precision ground and hard chromed. Springs are all made from the highest quality materials and are available in both chrome and black powder coat finishes as well as Standard or Heavy-Duty spring rates. A four-position cam style adjuster handles preload adjustment duties. Multiple lengths from stock to lowered available for most applications.