Buy the Anco windshield wiper replacement set. You'll want to pick out the two piece set since the manufacturer recommends replacing both wipers at the same time. Buy the Anco 22-inch Direct Fit OE Replacement Kit from PartsTrain.com. You can use this set on Silverado trucks made from 2003 to 2007.
Remove the old wiper blades easily. Move the wipers into a vertical position in order to access them. Anco replacements use the KwikConnect Installation System, which allows you to take out the blades by pushing down on a release button towards the center of the Silverado's wiper arms.
Glide the new windshield wipers into place. Once the old set has been successfully removed from the jaws, you can put the new set inside of them. After you have completely inserted the refill, it will automatically lock into place.
Turn on the wipers to make sure you have correctly fitted the new windshield wipers. If the wipers seem loose or leave streaks, then recheck the fit.