try doing a google search for rpm motorsports in minnesota. they might have the hinges you need. it will pull up a couple sites for atv's so just scroll down a few.

GB, do you have your springs on the tightest setting? if not do that washer trick. i have mine on the third notch now and the first time i opened it i thought it was gonna fly up and break my windshield. doesnt creep down anymore now. i wish i would have known that easy fix 15 years ago.