Part Number: 12-9942 Application: 1977-1984 FL1977-1984 FX1984-1989 FXST1979-1989 FLT1982-1989 FXR1986-1989 FLST Details:Pinion shaft gear is green size fits Big Twin models. Green gear size is 1.4721- 1.4715 . UOM: EA Country of Origin: USA