I just removed my old motor guide and installed a terrova, the over hang is nuts! i did not want to drill any extra holes so I bought a piece of marine starboard, cut to fit, this allowed me to use the 4 existing motor guide holes to mount the starboard to the boat, then used 4 bolts to mount the Terrova to the starboard, if i would have gotten a longer piece of starboard i could have used all 6 Terrova holes.will take pictures later and post them.