Vent Wing Glass Frame Interchangeability

The upper hinge on my 69 Dart wing glass is broken (driver's side). I have a frame from an early 70's Dart, but from looking at the 69(with a mirror) it appears to have a different internal support at the top of the door (bottom of the glass) than the one from the 70's car.

Will these two parts interchange?
Is there an easy fix(repair) for the upper hinge on the existing wing glass?

thanks........... :coffee2: