Well, looks like a M21 / 4:10 rear. Date on rear is correct at 1118 for a 11D car. Numbers match engine / trans. Looks like Power steering / radiator gone. He replaced the passenger fender years ago. No stripe or 250 emblem. Have to fix that.
Front wheels pretty much locked. Took 8 people to push it. Anyone want to see specific pics let me know. Odometer shows 52k. More solid than i thought. Just a bunch of scaled rust. floors / trunk look pretty good. Have to have Schoney look it over for an expert analysis.