1965 Dodge Dart Charger

TTBOMK = to the best of my knowledge.

I do not think that plastic shield was used in '65. I think the first year for its factory installation was '66 (or perhaps '67 with the move of the starter relay from the firewall to the fender liner). I'm not finding a part number for it in any of the FPCs I check from '64 through '74; it might well have been a "Not Serviced" item.