Re: Impeller – key vs pin to shaft

[Don]

Oh OK, now I understand where you got the 302520 number. That number is a "casting number", not an actual part number. But yes, the skegs on the two different style gearcases are the same. Remember, that those gearcase housings are really a matched pair though, just like the two halves of OMC crankcases. The skeg can not be purchased separately, there is one part number that includes both halves of the gearcase housing.
Very interesting topic indeed…