I'm rebuilding my drive on my Mercruiser Alpha I and trying to save on tools. I have decided to make my own for the reason being that I won't use them that much. These tools are not like automotive tools which i have in a range from 40 to 50 thousand dollars invested in them but I use them a lot. here is a pic of a upper retainer nut wrench that I made in about an hours time. My merc dealer wanted $70.00 bucks for this wrench. I'm going to make several other wrenches which i will save around $500.00. I will probably have to buy a gear shim tool since i can't find the specs on one.
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