Wheel Well Trim..Which One?

Hi
I had the same issue, although my original trim was saved and polished.
One thing to check, the front fenders on a 67 are different than 68+ It is hard to tell or see but if you look at the edge of the fender in front of where the wheel is and where the trim you speak of mounts to. The fender in this area curved more or follows the wheel contour more than the other years. Its rounder the newer fenders just drop off in a more straight angle. Hope I explained this in a way you can visualize? I found this out trying to mount newer style moulding to the 67 fender. It's weird and why they did this? My only guess is for more room around the wheel as the wheel is turned and the car hits bumps Etc. Check it out.
The new mouldings will require a tighter bending to fit, find an old moulding from a 68+ fender/ wheel and then you will notice it! of course this is only the case if your using the original fenders.