Does that one have C1AW down in where the ujoint cap rests, like I pictured? It’s just like the one I posted a picture of and is the style found on the 64-1/2 & 65 K-code. The C5 casting number and random symbols/numbered yokes are thicker than the C1AW and there is two different C1AW yokes, one is even thinner yet. The middle one is the known 64.5-65 version.