This is answer has variations. See sources and related links below for a good explanation and for wiper length/attachment information.
19" Front9" Rear
See sources and related links below for wiper blade installation videos and for wiper blade information - the rear wiper is relatively hard to find in stores.
The 1998 Ford Ranger takes 18" replacement windshield wiper blades on both sides front.
The 2002 Ford Escape has hook-end wiper arms on both front and rear and are easy to change. See the Sources and Related Links section below for videos on how to change wiper blades as well as what size wiper blades are on the vehicle (correct attachment and lengths). Tip: if you purchase the replacement blades first, there will also be additional instructions/illustrations on the replacement packages. Locate and press the tab or button where the wiper blade is inserted into the hook of the wiper arm and pull wiper blade out of hook. You may have to rotate and flex the blade to make enough clearance for the hook to pass through.
It's a 20 in. wiper blade
The 2003 Ford Escape takes 19" wiper blades on both sides front and a fairly specialized 10" rear wiper that is difficult to find in the stores. See sources and related links below for more information. Since there are currently over 22 different wiper arm attachments, do not buy wipers just by length only - be sure to lookup exact wiper blade part numbers by vehicle make, model and year for the brand wiper you decide to purchase. This ensures correct length AND correct attachment.
The 2003 Ford Escape takes 19" wiper blades on both sides front and a fairly specialized 10" rear wiper that is difficult to find in the stores. See sources and related links below for more information. Since there are currently over 22 different wiper arm attachments, do not buy wipers just by length only - be sure to lookup exact wiper blade part numbers by vehicle make, model and year for the brand wiper you decide to purchase. This ensures correct length AND correct attachment.
The 2002 Ford Windstar takes 24" driver side, 20" passenger side and 16" rear replacement windshield wiper blades.
The rear window wiper fluid comes from the windshield wiper fluid tank in the engine compartment on a 2001 Ford Escape
The 1994-1997 Ford Aspire take 20" driver side and 16" passenger side replacement windshield wiper blades.
The 1996 Ford Windstar takes 24" drivers side, 20" passenger side and 16" rear replacement windshield wiper blades.
The 1991-2002 Ford Escort takes 20" drivers side and 18" passenger side replacement windshield wiper blades on the front and if applicable, a 14" rear wiper blade.