74-89 rocker covers interchangable?

[Frog76S]

I have a 76 911S and need to replace the rocker covers. Will rocker covers from 78-89 fit my 76 or do I need to focus my search on narrow body model years 74-77?

Thanks for your help!

[Ferrino]

74-77 are different at the rear due to the wider rear flare on 78-89.