GM Service Manual Online
For 1990-2009 cars only

Object Number: 70087  Size: SH

Remove the wiper blade from the arm. Refer to Windshield Wiper Blade Replacement .

Look down the length of the wiper blade element. The rubber part of the wiper blade element (2) that contacts the glass, must be on the center line of the wiper blade, plus or minus 15 degrees (1).