1988 Mariner built by Yamaha 30HP  longshaft lower unit gearcase. Shifts smooth, no sign of water in oil although it does look a little tired. Water pump was pumping weak so it will need an impeller. Skeg and anti-cavitation plate are in great shape. I included photos showing the length of the driveshaft from the top edge of the gearcase to the top of the driveshaft. Feel free to ask any questions.  Shipping quote is for lower 48 states only, all others ask for quote. thanks