Gabriel is one of the oldest and largest suppliers of Heavy-Duty (HD) shocks and struts offering exceptional products, coverage and breadth of line. Gabriel's caged piston design is straightforward and durable. It is based on coil spring technology, designed to be more durable than competitors' multi-disc valve designs, and is validated for durability to 2,000,000 cycles. Self-compensating piston seal design maintains performance throughout shock life. 360 Degree arc-welded solid steel eye-ring end mounts for greater tensile strength (excluding some 83000 series). Outstanding fade performance. Hydraulic rebound stop - where required by design. High temperature fluid and fluid seal for optimal operation under extreme heat conditions. Hardened, super-finished chromed piston rods that resist corrosion and reduce wear resulting in longer shock life.