center link fit?

I was reading an old post where someone installed there centerlink backward in their 66 Dart and caused binding. I am installing a V8 centerlink in my /6 (soon to be V8 66 Dart). Does someone have a pic of the correct install. Or can you explain which side is which. I didn't realize the 2 sides were that much different till I read this and then looked at my new V8 one.