At the opposite end of this situation......I had a close friend who bought a 70 383 automatic Super Bee around late 77, low mileage, cast off "gas guzzler". I watched him and the next two owners beat it to a pulp, finally wrecked around 80. I personally removed a nice 3.54 Dana 60 from it. How did it get there? No one ever had a clue.????
Jess

Yeah, it's hopped up to over 160...