If you have the C washer kind that the axle rides on the brg. take a good look at the axle for pits. If it looks good & the brg looks good you can use them. You can go over the axle surface with some real fine emery cloth. The only alternative brg is one that rides on a different part of the axle in case the axle surface is scored. The seal should be available at any parts store. National usually has the part # on the seal also.