F/FF = Factory code (No factory designator for some 1993 and earlier models).NOTE: Pre 1994 productions also frequently omitted factory letter codes and appeared as all numbers. In 2008 models begin to appear without a factory i.d.
F/FF = Factory code (No factory designator for some 1993 and earlier models).NOTE: Pre 1994 productions also frequently omitted factory letter codes and appeared as all numbers. In 2008 models begin to appear without a factory i.d.
