DU8440 107669 SPRING: 1091-21 Cleaned (standard - included). Performed service. Seal heads rebuilt, or replaced as needed. Shims inspected and replaced as needed. Shaft inspected/polished, or replaced as needed. Replaced functional seals. Refilled with fresh oil. Set nitrogen pressure to spec. Rebound adjuster and locking rings were seized. They move properly after the service. C14 R14 clicks out. TIWI