Using our lift parts, you can build a boat lift to match your own requirements. The illustrated Ace Cable Unit lifts up to 2,800 lbs. straight lift and up to 5,600 lbs. with a double line pull. The following items are recommended for proper, safe installation: one 3/4 hp hoist, two snatch blocks with pulley or two utility hooks, two strap bearings, four bearing brackets, two 6 lb. cable weights (with straight line pull), and one spreader bar (to determine which spreader bar you need, measure the distance between the lift rings on the stern of your boat). These items may vary depending on installation. Boat lifts require a 2" drive pipe which must be purchased from a local source.