My original molding appeared to be some how melted or fused onto the original door panel. I think it is the repo trim that has the clips described above, or it may be another one of those "early/late 68" things ( mine's late).
I've had pretty good luck using 3M emblem adhesive to hold the original molding to the repo panels. My original moldings are also a tad bit longer than the indentation provided in the repo panel, so that also causes some problems, as far as getting it to lay flat.
BTW: I'm in Arizona, 110° is the norm during the summer( probably 130° on the inside), and they are still holding 3 years later.
[This message has been edited by Gene McGill (edited 05-28-99).]