I have a 92 trx 300 2wd. Had it for many years and it’s been a great ATV, but it hasn’t been ridden much in a few years. Trying to repair/rebuild back to good running condition. Working on the brakes and can’t get the front brake drums off. I’ve removed the cotter pin and the nut and the brake drum doesn’t budge. Anyone have any suggestions on what I need to do to remove the brake drum?