Billguitarvin

Hey there! My sliding door lost in a battle with a fire hydrant nozzle. It was badly gouged so I’d like to replace it. I’ve done some searches on YouTube and Google but can’t find anything about how to uninstall the existing door and replace it with a new/used door. Does anyone know of a link that talks about how to do this step by step, or have any of you replaced the sliding door! Thanks!