From what I've heard, it's better to use a 70-72 Malibu because of the resulting surface of the rear deck and rear-side window geometry. I think this conversion was done by an earlier Malibu or Cutlass. I highlighted what I'm talking about with the red arrow. A later Malibu donor will make this look smoother. Don't worry, I'll be sure to grab some unrestorable basketcase.
