You might consider a 8.8" cut own to fit. I'm not sure if they had any with the correct 4-lug setup, but maybe. It's a pretty common Falcon add as it seems if you remove the long tube and axle side and cut down the length of the short side and get another short-side axle shaft, it fits a Falcon. There is probably a specific model you need to start with (I know DogHouse here did one on his 63 Sedan Delivery back in the good ol' days).