I'm betting that the 3rd gen firebird would swap in just about the same as the 4th gen. In other words I think it would fit just fine.
The Firebird of the same era as Fiero (82-88) did have better looking dashes. If you want something that is better looking without being overy dramatic it might be a good swap.
From a wiring standpoint I think 3rd gen would be easier than 4th gen. The Fiero to Firebird wire conversion would probably involve less color changes.
I think there was one forum member that either had done it or was thinkning about doing it. I'd like to see a picture.
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