TO REDUCE WINDSHIELD WIPER BLADE CHATTER ON 1983 "A" STYLES A FOUR DEGREE TWIST TO THE BLADE ATTACHING END OF THE WIPER HAS BEEN INCORPORATED INTO PRODUCTION THE FOURTH WEEK OF MARCH, 1983
THE NEW ARM ASSEMBLIES (20467903 RH AND 20467904 LH FOR BUICK AND 20467906 RH AND 20467905 LH FOR CHEV, PONT, AND OLDS ) CAN BE IDENTIFIED BY A "4" FORMED INTO THE UNDER SURFACE OF THE WIPER ARM DIE CAST BASE. (SEE ILLUSTRATION)
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