Yamaha - Lower unit assembly - LF300 - LF350 - FL350 - 6AX-45300-3A-8D - See Description For Applicable ModelYamaha Lower Unit Assembly Gearcase & Drive System LF300 LF350 6AX 45300 3A 8D Overview On Yamahas larger offshore motors, the lower unit is doing the heavy lifting every time you throttle up. This assembly is built for LF300 and LF350 platforms, delivering smooth, consistent power transfer from the engine down to the prop. Whether you're running long offshore trips or pushing through rough water, having a solid gearcase underneath matters. If your