Thanks for the tips. I should have pointed out that the picture showing the wood shim was taken when I had lifted the motor off center to patch the previous holes. So, the wood shim is not intended to be there.
I think I can get the PTT holes to fall below the fiberglass shelf so I would have...
I have a 1980 80 HP Merc that I am putting on an old fiberglass boat. The transom is solid. This is replacing a 1971 Johnson 50HP.
I have patched the mounting holes for the Johnson.
My problem is that there are only 2 mounting holes on each bracket, for a total of 4 holes. There are not...