Its very easy once you have the correct wiper blades. The 2001 Chevrolet Silverado 2500 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 2004 Chevrolet Silverado takes 22" replacement windshield wiper blades on both sides front.
The 1999-2010 Chevy Silverado Series Pickup takes 22" replacement wiper blades on both sides front.
The 2005 Chevrolet Silverado Series Pickup takes 22" replacement windshield wiper blades on both sides front.
The 1993 Chevrolet C1500 Silverado takes 18" wiper blades on both sides front. See related link below. To ensure correct attachment as well as length, always lookup the exact wiper blade part numbers by vehicle make, model and year. There are 22+ wiper arm attachments and not all wiper blades fit all wiper arms.
How do you Change Windshield Wiper Blades on a 2004 Chevrolet Trail Blazer?
2003 Chevrolet Silverado Pickup: 22" replacement wiper blades both sides front 2003 S Series Pickup: 20" replacement wiper blades both sides front See sources and related links below for more information.
What are you removing? The blades or the arms
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No, They don't You can have them replace and install wiper blades for about 14 Bucks