Here's a link to the 68-9 molding clips:
68-69 ‘Cuda Coupe Molding Clip Kit Windshield/Rear Window 82pcs | eBay
Here are the corners we are talking about — this set is for the lower windshield corner. The angle is subtly different for the upper corners, but I think a lot of people just mix and match them, and the sellers aren't always good about identifying them:
NOS Mopar 1967-1969 Dart Valiant Cuda Lower Windshield Moulding Caps Mint Pair! | eBay
I don't recall if the coupe has another piece in the center of the bottom, at the point. This ad is showing a straight segment:
1967-68 MOPAR BARRACUDA VALIANT NOS TRIM CLIP FOR REAR WINDOW LOCK MOPAR#2839317 | eBay
