I had to do the same thing a few months ago. They will turn. I got mine of with a standard ratchet. Maybe they put locktite on them. If you have a rattle gun that might break them loose. I had the hardest time with the ones you already got out. I know their in a tight location but maybe a box wrench and a hammer might break them loose. Once loosened, they came out by hand. As a side note ,when you reassemble the unit I put the pin that holds the shaft on before installing, as it was hard to get to when in place. On the pin that swings the drive I used a spring pin like one on a trailer hitch pin. This was much easier for me rather than the cotter pin, as I could slide it right in. Also I cleaned all the pins with fine Emory cloth, and lightly greased them. Dave-R
