This is a question that comes up all of the time. It is " How Do I get the bed trim off my 72-79 Ranchero ?
1)Remove the rear tail lights
2) Look up inside of the light and there are nuts holding the small trim piece. Unbolt and remove.
3) the Hockey Stick shaped pieces are held in place by retaining clips. You can easily pop or slide them off.
4) Now the fun You must remove your headliner to access the nuts on the rear trim pieces above the rear window.
5) Do the same on the other side and thats it.
6) Have a BEER