From Utah. 67 Barracuda Fastback. Hello!!

Welcome pops, glad you're back in the game. :thumleft:

As far as the rear goes, i don't have a line on anything at this point, but I wonder what was in it originally? I'm guessing it was a /6 or 318 car that had a small 7.25" rear. With the 340, you'd probably be money ahead looking to convert to a 8.75" originally from a "A body". Not cheap these days, but it could be a one and done swap. Meaning a good one would last you for years making some good power. You might at least post a question in the Drivetrain forum about this, and the wanted section will usually bring some results also.

Can't wait til' you get her fixed up. Enjoy, and we love pics. :D