The 1991 Ford Aerostar has the most common hook-end wiper arms. See sources and related links below for installation videos. 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.
Assuming that you mean wiper blade (blade and frame) rather than wiper arm (piece from the spindle at the hood to the wiper blade), the 1991 Oldsmobile Eighty Eight has the most common hook-end wiper arms. See sources and related links below for installation videos. Also, purchase the replacement blades first and there will 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.
That vehicle has hook wiper arms. Find little tab on wiper blade where its inserted into the hook. Press tab and pull wiper out of hook. You may need to rotate blade to make clearance. Sometimes you have to flex the blade a little to in order to make enough room. See video for hook arms on the link below.
When you purchase the new wiper blade the package has detailed instructions on it. Or you can get the parts person who sells you the blade to change it for you. I have changed many blades for customers.
Assuming that you mean "wiper blade" (blade and frame) which are replaced often rather than "wiper arm" (piece from the spindle at the hood to the wiper blade) which are rarely ever replaced, the 1991-1994 Oldsmobile Bravada has "3/16" side lock" wiper arm attachments and the 1996-2004 Oldsmobile Bravada has the most common hook-end wiper arms. See Sources and Related Links below for installation videos. Also, purchase the replacement blades first and there will be additional instructions/illustrations on the replacement packages. Its very easy.
look for a little clip at the end of the arm where the wiper blade slides over pull up on the clip it should slid right off.
Was there a 1984 Oldsmobile Cutlass Calais? I see them listed at 1988-1991. Assuming that you mean "wiper blade" (blade and frame) which are replaced often rather than "wiper arm" (piece from the spindle at the hood to the wiper blade) which are rarely ever replaced, ALL 1988-1991 Oldsmobile Cutlass Calais' have 3/16" Side Lock wiper arm attachments. See Sources and Related Links below.
The 1991 Chevrolet Caprice wiper blade sizes are 22" wiper blades on both sides front and a 16" rear wiper. See sources and related links below for more information. Since there are 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 wiper motor should be located on the driver side under the cowl grill below the wiper blade good luck
The 1991 Mercedes-Benz 300e has the most common hook-end wiper arms. See sources and related links below for installation videos. Also, purchase the replacement blades first and there will 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.
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.
1991-2005 Buick Park Avenues have the most common hook-end wiper arms. See sources and related links below for installation videos. Also, purchase the replacement blades first and there will 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.
That vehicle has hook wiper arms. Find little tab on wiper blade where its inserted into the hook. Press tab and pull wiper out of hook. You may need to rotate blade to make clearance. Sometimes you have to flex the blade a little to in order to make enough room. See video for hook arms on the link below.