A different antenna question

[special-K]

Pretty much all my trucks have come with fixed mast antenna, whether AM or AM/FM. I have mostly had 70-72s and those are what I am remembering most. That was the standard antenna and the spring one was an accessory. Most of those you see were added on after the original broke or bent. I put spring mounted antennae on anything I had that needed one for the unbreakable feature. They were very popular. In fact, there were replacement masts made to slip over the stub of a broken antenna so you didn't have to mess with mounting/cable/etc.
For trucks with campers, GM offered a fender mount. My all original '71 Custom Camper came with AM radio/31" solid mast and it rubbed on the front of the camper overhang. In fact, it sat flexed forward. If they came with telescoping mast you could just lower it, no need for special antenna drilled into fender