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Hagerty Fan
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1973 Pontiac Grand Prix S Coupe

Can anyone answer this question? Can you interchange the top(roof) of a 1973 Pontiac Grand Prix S Coupe with another year after 73

Advanced Driver

I am not aware of any significant difference between 73-77. There will most certainly be other differences that are 1973 only in the body, but to my knowledge, the roof is not one of them.

Community Manager

I agree with @Greg_I as the Grand Prix colonnade roof is probably exactly the same for the entire production run.


Wouldn't be surprised if you can make other GM colonnade coupe roofs work if you are good with metalwork, but all 73-77 Grand Prixes should be the same.