Join Date: Jun 2004
Location: West Michigan
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Easy extended depth socket, take the correct sized 6 point socket and cut it just below the drive side, then take a length of DOM tubing that fits over the socket and have it welded together at the length you need.
'Homebuilt' sockets like that are generally much better than manufactured sockets as most of them are just pressed and deform very easily, using a heavy wall tube means there is no loss when torqueing them.
Don't cut the bolts for access, as the length is normally needed when you need to drop/install the keel.
Have several like that in my toolbox, the old ford fm145 transmissions were notorious for having a nut work loose that was on the wrong side of an 11 inch shaft.
Crowfoot wrenches are great, but have the same drawbacks as any open end wrench, they only drive on two sides and can easily round the nuts.