Steve....I have a LF 38 and just installed a larger transducer (Raymarine B60...Fishfinder - I wanted to see the bottom contours...but am willing to take up fishing! Plugged directly into my A97 MFD...) just forward of the keel. I found the hull solid at that point....I suspect that below the water line it may be solid...maybe. The gotcha I did find was that the thickness of the hull was greated towards the centerline....than on the waterline side. The transducer fit flush on the outside, but, the gaskets on the inside did not fit flush all the way around. If/when I feel like loosening the but on the transducer I will add some spacers along the waterline side the nut will spin on and more equally hold the outside edge of the transducer flush to the hull. Not this year.
Spencer Johnson 1984 LF38 "Alegria" #165 Wuakegan, IL,/ Racine, WI
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