Stem Diameter 0.298Type SGDegree 7Part Comment 1 grooveAMERICAN MOTORS 1983-1984CHRYSLER 1982-1994DODGE 1966-1995EAGLE 1988-1989FORD 1960-2003JEEP 1983-1990MAZDA 1991-2000MERCURY 1960-1983MERKUR 1988-1989PLYMOUTH 1966-1995