The assets and advantages of a Craftsman Marine saildrive: Dual sealing diaphragm with water indicator for maximum security. Forward and backward installation are both possible. Easy and simple installation, as well as very few vibrations, compared with a conventional shaft assembly. A completely dry system. No water lubricated shaft. High efficiency, on account of the thrust power running parallel with the propulsion direction. Water inlet positioned at a low level prevents pollution of the cooling system. No alignment whatsoever required. Suitable for twin engine installations.