Complete Sterndrive Unit Replaces: Mercruiser® Alpha One Gen II series Available in STD or Counter Rotation STD Rotation $1,395.00 Counter Rotation $1,595.00 Call toll free to order 888-567-8448 Complete Sterndrive Unit Replaces: 1973-1991 Mercruiser® R/MR/Alpha One series. Available in STD or Counter Rotation STD Rotation $1,195.00 Counter Rotation $1,395.00 Call toll free to order 888-567-8448 PRODUCT BREAKDOWN Lower Gears Upper Gears Water Pump Assembly U Joints Oil Seals and Gaskets Zinc Parts Bearings Bearing Carrier Shafts U-joints for all four operating gear ratios: 1.47 (20/22) // 1.62 (24/24) 1.81 (17/19) // 1.94 (20/24)