Don't forget, the Ramcharger and Trailduster didn't debut until 1974. So, it makes perfect sense to me that Ma MOPAR would have carried these 72/73 truck (D100/D200) grills through to the new models, instead of re-designing a grill, which requires new tooling.
Well being well aware of the trail Duster I'm still learning and that's why I'm asking questions. I wasn't sure when they begun or anything like that so thank you...
Anybody who says they know it all about mopars is a liar...