again the guys that have been there and done that come up with things I can understand and do with confidence. Thanks. and thanks for the spare bearing comments, I would feel better to have a set in the camper. it really wasn't very hard to do, basic tools nothing very special needed, I can see being able to do that while on a trip if needed. speaking of jacking up the wheels, I carry a 2 ton floor jack which did do the job with some leverage which is hard to achieve while underneath, would a bottle jack be better,