My NAPA store has them, about $100. Should be at any good boat store. Be sure to get the shaft long enough to go through and have enough sticking out. The longest ones were barely long enough for mine. Also make the hole oversize and insulate the shaft from the hull. ( I just used tape ) Otherwise the hull is in parallel with the negative wire and you are asking for corrosion.
And party is @ Sorrydog's
Happy Thanksgiving to all,
Ed
BUSIA
32 foot, no flybridge, twin 350 (chevy) Crusaders, closed (freshwater) cooling, 1:1 Velvet drive transmissions.
Proud to be IBEW.