Does anyone know how to figure out date codes on these? I have 3, all have 95664 cast on a pad, a number 4 on a different pad. One has 73, one has 5-11, last one 4X25 each on a pad. All are ball and ball style. Thanks

The 4x25 is on a 1971 date code hemi trans, I think its all original,vwas pulled in 1980 . I found another trans here, 1971 340, same cast number, that has a 3X48 side cover, looks original going by the patina. Do 1971 use the x? Hemi trans is 148000 vin, 340 is 334000 vin.