I really see no way of mounting the radiator to the front of my core support with that horizontal bar there. Plus there isn't a flange on the front of the core support for the mounting holes. You can see the horizontal bar in question and the radiator mounting hole (the square welded nut @ 3 per side as viewed from the front of the radiator and core support) location in the pics below.
I appreciate your recommendation to Jim Carter (I've bought nearly all my parts through him) but as all but one guage was non-functional, including the speedo, plus the truck being converted to 12-volt, I elected to simply upgrade the guage cluster. Thanks for your insight though. I appreciate any guidence people are willing to give.
front view core support