Gerald Morris
Senior Member
I think there is enough here to see the pump design....std two piece mount with snubber, and you can see the vertical return fitting on the reservoir. Nothing on the engine side of the pump. Pressure fitting on front side of the outboard top of the pump. Shaft size is roughly 11/16 with hole, 1.2 pump I think.
That's the old style big TRW, 1961-66. They went to the 3/8 or 11/32 return line in '67 for the big ones. I love 'em!