Vertical pull winch support - This system was designed for vertical pulling. The 2'' square tubing fits on the tree/pole mount PCA-1263. It is designed so the rope goes through the pulley and then straight up. It offers a solid support and is ideal for pulling electrical cables through conduits or lifting equipment. It also fits on the square tubing PA-126 or adaptor for Heck-Pack PCA-1265 when using a vehicle as an anchor point.