Can anybody identify what this rear's out of?

I got this rear out of a '68 Charger flip top funnycar- a very crude one that came out of the SF Bay area. Can anyone here give me a positive ID on it? That is; what it was originally in. I think it's either Olds or Poncho, because it sure doesn't look like a Ford or Mopar that I've ever seen, and Olds was still a bit popular back then.

 

59-64 Olds/Pontiac. Open it up, might be a good posi or locker in there.

 

Definately an Olds/Pontiac and it's the 3 rib case too so you got a good one. Now to see whats inside...

 

Yeah, I'll get it up off the ground and spin it to see what the ratio is. Don't think I'll bother opening it, I just want to move it. But its a locker or spool for sure.

Oh, and thanks guys!