Part # for Swinger Emblem Barrell Nuts
Since your a new member, let's help you out on Chrysler sheet metal terms.
Fender location is front of car and quarter panel is rear of car.
Combining the words like in quarter fender can be confusing. Just trying to help out.
The number shown in post 4 is the fender location
The quarter panel retainer is 9420263.
It was used on many Chrysler nameplates back in the early 70's.