Will this work on my 68 dart GT?

I've had radio deletes for the full plastic on a GT/GTS and it is smaller and has wings on each end of the top to match the full heater/radio bezel. This one is for the small heater bezel on Swingers and low line Darts, they do not interchange. I saw a huge box of them for sale at the Mopar Nationals in the 90's, probably had 2-300 of them in there!