Windshield Wiper Blade - Chatter
Model Year 1983Bulletin No. 83-166
File in Group 80
Number 8
Date Aug. '83
SUBJECT: WINDSHIELD WIPER BLADE CHATTER
MODELS AFFECTED: 1982-83 CENTURY
To reduce windshield wiper blade chatter on 1983 Century a four (4) degree twist to the blade attaching end of the wiper arm has been incorporated into production the fourth week of March, 1983.
FOUR DEGREE IDENTIFICATION:
The new arm assemblies (20467903 & 20467904) can be identified by a "4" formed into the under surface of the wiper arm die cast base as shown in the illustration.