I have the Horst 3700# forks for my 4320 and am really happy with them. They weren't cheap from the dealer, but I wouldn't go lighter. Forks that you have to worry about damaging are going to be a lot less useful. I wish I had thought to have the dealer weld on a pair of hooks before I brought mine home. It would be nice to able to use a chain when I've got barrels standing on the forks, or whatever.