This may be a crazy question but I thought I could get a quick answer. I need to get it off my mind and can't wait till dealer opens monday. I am looking at a John Deere 653 Z. I did not have a tape to measure but I think it has a 53 or 54" deck. Does anyone know what comes standard or if it is a 50 something deck can a larger deck be purchased and put on it. It was dark and I didn't even check what horse the engine was. Good unit though and a sweet deal.