Quad Boss Winch Replacement Parts Grey Rope Experience the assurance of durability with these superior-grade winch replacement parts from QuadBoss. Always be ready for what's next. Features: Replacement winch rope with Dyneema Available in three sizes: 39' x 3/16 for 2500 lb. winch 39' x 7/32 for 3500 lb. winch 50' x 1/4 for 5000 lb. winch