I recently acquired a Roadrunner project. I'd let this one go for $6k and throw in a 1968 Fury III project 2 door hardtop with numbers matching 383/728 still in it. It's a short block. And it's rough. Frame is good. Needs quarter, trunk, roof work. Not sure about floors. Inside is complete...
That's really close to a 7 1/4 but the longer I stare at I feel like I may be wrong. I fall short on not knowing what a Dana 53 looks like. I tried to google it but too many different ones came up. No way to tell.