Those are not 1971 Duster . These are and they are quite expensive. I have a large box of them but I didn't go through all of them yet. I have two cars I need 4 to install. I have to make sure they all work. They get pretty corroded over the years. I need to put some good pairs together. The fender takes three holes to install on 71 cars. I have seen them for sale at times and usually buy them if the price is right. Its the bulb sockets that go bad. So having spares is a good thing. If you buy used make sure they work. I didn't see any in the parts I just brought home .
I just went through markers for my car and was doing the signals next. I will keep you in mind after I see what I have. Out of all of the markers I got 6 good sockets
1971 All Makes All Models Parts | MD328 | 1971 Mopar A, B & E-Body Fender Mounted Turn Signal Indicator Assembly Set | Classic Industries
View attachment 1715562981
View attachment 1715562982
View attachment 1715562983