Darrell, I am familiar with the CRG page, what I don't see addressed is how do you tell a late 68 radiator for a early 69 like Jimmy V, vs the same "F,G,H" date for a late 69 built Camaro. I didn't see a metal tag in his pic to help with identifying.
So my question is since there isn't a early production or late production distinction according to the chart, could you in fact use Jimmy V's dated radiator for a early 69 Z, and a late 69Z and it would be correct still?