There is a clip behind the round part of the handle that is right next to the door panel. The clip is "u" shaped and the last time I pulled mine. I used a clip removing tool that I picked up at the auto parts store. Its flat and has an opening to push the clip off the post. This tool is cheap and thats how I would do it.
If you don't have one, I have seen guys hook it and get it out. Sometimes they markup the door panel and sometimes they don't... luck of the draw I guess.
If you tear up the door panel it can be replaced with a new one for just over $200.00
Go buy the tool..... the mounting is all the same on 70 to 78's.
I just use a flathead screwdriver, but then again my panels aren't that great to begin with so I'm not worried about small scratches. It would probably be much easier with a proper tool, one of these days I'll get around to buying one.
I like the clip removing tool because its also a great aid for putting that little darn clip back on. I know what you mean about a flat head screwdriver. I just haven't had much luck in using one for this type of job. I think I paid less then $5 for my tool, but that was back when I was building Camaro's.... yeha... Sorry Z fans!
I think the clip removing tool is a good investment. I don't use mine often, but when I need it. Its great to have it on hand to use. Something about what my Dad told me about using the right tool for the right job. I guess that stuck.... or did it come from my auto shop teach in high school. O'well, I think ya get my point.
I use a shop rag as that way you don't lose the clip. It takes a couple of seconds to remove it, and there is no damage to the panel. Everyone has one of these tools.
I had a customer ask how to put the clip back on, it seems he was putting the handle up to the panel, and then didn't have any room to put the clip in! I'm serious!
I maintained a polite attitude through the 3 phone calls
he made to us until he got it back on.
We hear some real good ones in this business.
Another customer filled his oil up until the oil was at the
top of his valve cover!
Life is great, and we all have our weak moments, Joe