Does anyone know if there is a large difference between the passenger rear floor pan from a 64 impala, and my Jetstar 88? It's my understanding that all the B body GMs were similar and the carpet is the same. I can modify it to fit if its close. Otherwise is there a supplier for new floor pans for my car?

 

There isn't a supplier of B/C body Oldsmobile body panels that I know of. You will either have to find a donor car, rebuild the floor pan with sheet metal or adapt an Impala floor pan. I would go with option number 3 if you can't find a reasonable parts car.

 

Summit Racing sells floor pan sections that are suppose to fit 64 B body Chevys and Pontiacs. I am going to try to modify it to fit. I will update this when I try it. Thanks for the response.

 

Let us know how it goes.

 

I was successful in using the Impala rear passenger floor pan. It took some extra cutting and bending but I was able to make it work. The biggest difference was in the back inside corner. But if you have enough good metal like I did you can cut it and lay it flat in that corner.