The MOOG K6331 Idler Arm is a high-quality steering component designed for specific Chevrolet and GMC truck models from 1988 to 1991. It features a grease fitting for easy maintenance, pre-greasing for convenience, and mounting hardware included for easy installation. This product is manufactured in the United States by the trusted brand MOOG, ensuring durability and performance for your vehicle's steering system. With a mounting hole diameter of 2.362 inches and a length of 5.591 inches, this idler arm is a reliable choice for your Chevy or GMC truck.