Rdeplacing the spindle on a Craftsman mower deck
I own a Craftsman LT3000 42" and when using, the blade hit a rock and damaged the star mount at the bottom of the spindle of the deck mower. I see that there are forum members who are comfortable and have experience in replacing the spindle, which is what I think need to do, but my problem is that I cannot remove the nut at the top of the spindle that holds on the pulley wheel. My brother came over last Sunday and held the blade while we tried to turn the nut, but our combined strength wasn't enough to make the nut budge. If I could remove the nut I could (I hope) remove the pulley wheel, and then pass the spindle through the deck, and then reverse the process for a new spindle. Perhaps some members on the forum could chime in on my approach, and if it is sound, give some ideas on how to remove the nut. Maybe I am using the wrong tecnique or tools? Maybe I shouldn't be trying to remove the nut!
Assistance is appreciated.