I recently purchased a set of unused stock 02 YZ426 wheels/hubs for my 98 YZF400. The front wheel went on perfectly with a set of 02 wheel spacers. The rear wheel is a different story. The rear wheel bearings have a larger diameter than the 98 YZF400 and the axle bolt has way to much slop. Can I use a set of 98 YZF400 rear wheel bearings in the newer 02 YZF426 stock hubs? Do I need a set of custom bearings? Any other ideas? Any help would be GREATLY appreciated.