If it was a factory item, I believe it would show in the manual. I am not the original owner of my 87 and my wife was not the original owner of her 93 but both list am/FM stereos on the build sheets so I know they are factory. And when I had to replace them since both were snapped off when we purchased them, a quick search on morris and quadratech showed the same single mount, three screw antenna and mount.
I understand about odd ball parts and differing options but I would believe the build sheet and parts manual
Yes mine is the 3 screw mount but it also has a single screw "retainer" above it.
my brothers 91 had the same one that's on the red one in the first pic. as a quick fix we found a driveway reflector on a aluminum rod at wallyworld for $0.98 and knocked the reflector off it and stuck the rod it in the hole with a few wraps of tape to stop it from rattling. worked great until he bought the one from amazon.
Mine is like the last one on this page. Or the black jeep on page 1.
[COLOR="Red"]Any Jeepers in Edmonton, AB
I am on channel 33.[/COLOR]
I live, I ride, I am JEEP.
My '93 has the second style antenna, though the mounting spot on the body is different. Mine is mounted lower and more towards the front, on the actual body panel, not on the triangle piece as the pic you provided shows.