After three years of lurking I picked up my first JD! I picked up a 2007 x744, with a 62C deck. I was working on getting the deck setup and found that two of the gauge wheel posts are stuck and I can't adjust the height of those two wheels. In general the deck is in great condition, the posts don't look bent or rusted. I put PB Blaster on the posts all day, blocked the deck up off the ground with some 2x4s and gave the posts several knocks with a 10lb sledge hammer. Now, I wasn't taking big swings, but those things won't move. I could try hitting them harder, but I'm not sure how hard I can hit them without causing bigger problems. Anyone know any tricks to get those posts freed up again?