The 1991 Oldsmobile Silhouette wiper blade sizes are 24" wiper blades on both sides front and a 13" rear wiper. Do not buy by length only though. See Sources and Related Links below for more information. Since there are over 22 different wiper arm attachments - 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 replacement wiper blades will come with instructions on how to remove and install the wiper blades. Your owners manual should also have instructions if you don't follow the instructions on the replacement 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.
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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.
on the turn signal switch
All 1991-1995 Acura Legends take 22" driver side and 19" passenger side replacement windshield wiper blades. See sources and related links below for more information.
The 1991-1996 Ford Explorer takes 18" replacement wiper blades on both sides front and a 13" or 14" rear. See sources and related links below for more information.
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 1991-2002 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.
The 1987-1993 Dodge Caravan/Grand Caravan takes 18" replacement windshield wiper blades on both sides front. 1987-1990 takes a 16" rear wiper and 1991-1993 takes an 18" rear wiper.
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.
The 1991 Chevrolet C1500 takes 18" wiper blades on both sides front. 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.