[35ragtop]

I have just done this on my 48 Mercury. I had to undo the wishbone and pack it down with a block of wood to gain access to the nuts holding the 6068 to the chassis. The heads are coach style so should not turn. Jack up the engine and transmission to clear the mount. You also have to remove the nuts holding the rear bearing retainer (7085) to the rubber insulator.
A real fiddly job, especially for us that don't have a hoist.
Dave h