$60? I think I had to modify the bracket that holds it to fit the PC it went into.
I've only rebuilt around 1000 motors, but they were GE motors and I don't know the origin. (From GE 1.5 MW Wind Turbines) They had holes drill in them if I remember right.
Put a Diesel Fuel filter on your intake, you will notice less noise, and less water in your tank. I have a video on it.
I have the better Tormach "self balancing fan" and it looks like a Chinese kid made it with a pair of scissors. It's posted on CNCZone in the "Finish" thread I believe.
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It wont' let me quote more than this.. so RAY, You are just backing up what I have said. The 67DB is the LOUDEST this will be, it gets quieter everyday.