Could use a little 66 dart schooling....

headers are some other persons " bailiwick" since I'm a /6 guy. grill parts can be found (Pricey) headlight bezels are the same suck to purchase and hood front trim is a monster to find. one year only like most of these cars, drivers side outer bezel are almost impossible to find good and pitted pot metal is a fortune to re-chrome.
I'm not too sure on the radio delete plate since all the ones I have seen had the heater and delete in the bezels
in this image you can see a heater w/radio delete(top right). that came off of a 4 door with the 3 side spears so I'm "assuming" it's the 270 model and not the 170 but am not really sure on that statement. there was no glove box plastic piece or end cap on the more-door car. These I can vouch for removing them personally at center was hardtop GT with A/C, bottom (2) was Hardtop 1 GT 1 270 normal heat only. Also none of the end pieces (all gt's)were 270 in this pic' but I do have one and it's got a 270 emblem on it.
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170 heater with radio
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pretty much all the darts Iv'e seen ( minus the whiteface conversion)
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done except for the numbers.
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and the dash opening in your car should look like this
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Great info here!