MAXX Link Heavy Duty Sway Bar End Links are the extremely durable and cost efficient solution to the Trailblazer/ Envoy’s notorious reputation for chewing up OEM ball-in-socket style end links. Made from a combination of high grade steel and corrosion-resistant components, the MAXX Link end link system utilizes simple, effective design in conjunction with sturdy, robust parts to achieve outstanding performance and long-lasting results. Covered under the MAXX Warranty. Replaces MOOG K6666 / K6665