They were very common and were a good design that still worked many years later. If you look at original photos you can see the bullet type are right on the body line and the type you have mount on the flat part of the fender top.
As the title says, the park lenses are for a 67 valiant, I didn't say the indicators are.
a 67 parts book will tell the story. I don’t have one. The bullet type I pictured is 67-69 Plymouth’s only.