I tried locating a set of those at one time. Definitely look like a non factory, but dealer installed by request, mirror to me. Items like these are usually added on per a request or dealer. If you look at them images above, you can see a few items that look to be added afterwards. The sunroof, sun deflector, push guard bumper, sport mirrors. These items were sold on new trucks, but placed on later to enhance the potential of a sale.
I am not sure exactly what the brand name is on the mirrors, but Pennyman might and anyone else that has the sport truck with those installed. You could try calling a dealer and ask if their parts department still have a record micro fiche that can reference those for you. Someone here knows though I'm sure.
1986 Mitsubishi Mighty Max ("Mitsy") Repair-Renew-Rebuild-Replace Thread
"My 1st Gen Japanese Vehicles"
1986 Mitsubishi Mighty Max ("Mitsy"-Purchased '87)
1989 Toyota MR2 GT (Purchased '08)
1974 Toyota Celica GT (Purchased '76 - Sold '12)
"1st American Car - 9th Gen"
1985 5.0 302 Ford Thunderbird (Purchased '14) - "Restoration"
the black sport mirrors were the stock mirrors - the "elephant ear" mirrors were the optional mirrors. Geronimo has a set of Vitaloni Tornado mirrors on him that bolt on with the same screws that hold on the sport mirrors. I also have a set of harada bullit mirrors that were used on 70's musclecars to put on the 86 project truck. Most of these aftermarket mirrors have a slotted base to allow for a variety of mounting options.
The best Dodge that Dodge never made
Living the D-50 lifestyle since 1980
as mentioned on the above posts...standard on sport 1st gen...more specifically EARLY 1st gen (making them harder to locate)....had set of the mirrors & wanted to put them on an 84 (that had mint condition doors) only to learn they will not fit...so I threw them away!
Thanks for the input guys. Ima look into those pennyman.