Attempted to remove rear wheel for new tire and the axle wont come out. After working on it for 1/2 hr, I'm concluding that a bearing, maybe both are rusted to the axle shaft. With a number of carefully placed whacks with an 8 lb hammer it will only move about 1/16 inch. Its an 02 WR and the rear wheel has not been off the bike in 9 years. Any thoughts about whats next?