From what I can determine there is a prop for the short shaft 8.5x8.5 and
one for a long shaft 8.5x7.5 plus Tohatsu lists a third prop for just
"heavier" weight boats this is evidently an option for both long and short
shaft motors. The pitch on this one is 8.5x6.5. The Caribe with the
modified keel is 130 plus 56 pounds for the engine so I would think the
later prop would be the answer.

Jerry