~ impact resistant, stamped steel frame, gear case and cover for durability and light weight. ~ hardened steel load sharing gears. ~ double pawl arrangement for assured load control. ~ two chain guide rollers for positive......~ impact resistant, stamped steel frame, gear case and cover for durability and light weight. ~ hardened steel load sharing gears. ~ double pawl arrangement for assured load control. ~ two chain guide rollers for positive chain engagement. ~ weston type braking system for positive load control and positioning. ~ simple one-handed, free chaining for fast load attachment. ~ minimal maintenance with no special tools required. ~ 5-year warranty against defects in materials and workmanship.