Found a HR service center by googling. Link here was dead. Called Indiana Center twice, no response. However the west coast center was very helpful. Sent a schematic with the numbers of all my windows. They have exact dimensions and are contacting manufacturer for me. I chatted with Melody Vincent who was so helpful. I told her I was
disappointed Navistar bought HR since the last two Ford diesels they engineered were horrible. She said they had just been bought out by the parent of Fleetwood.
Take out the window? Wow. To replace the screen? Or did I misunderstand?