NOS Upper Right Hand Ball Joint 

Fits 1964 1965 1966 19671968 1969 1970 Pontiac All Full Size Models

Bonneville, Catalina, Grand Prix, Venture, 2+2, Star Chief, Executive, Safari. 

Pontiac Part#: 9781031

This part was  superseded by 9794247 and 9775241   

PLEASE note GM never supplied this part with the cotter pin and stud nut.