The earlier ones were a 12 bolt. By 72 maybe they had the 8.5" or the BOP style diff? Looks like the disc brakes are already gone, factory air car too...
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
Yes, the 12-bolt 3.07:1 Type-C rear would have come on it if it was a factory 455 with a/c. That car with the 400 & a/c would have come with a 3.23:1 (or possibly 3.08:1) 10-bolt 8.5" Corporate rear. They were such cool cars when new. It is sad to see it in the junkyard, but at least it can give its life so other can go on.
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67 Chevelle Malibu Sport Coupe, Oshawa-built 250 PG never disturbed.
In garage, 296 cid inline six & TH350...
Cam, Toronto.
I don't judge a man by how far he's fallen, but by how far back he bounces - Patton