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NO.
All the guts of the thin P, thick P and Canadian P are 100% interchangeable.
Corvettes ONLY got the thin P from the Detroit Gear and Axle plant.
Passenger cars got thick or thin P rears from either the Detroit or the Buffalo plant.
A thick P from the Buffalo plant WAS NOT installed in a corvette.
Some Canadian Pontiacs, and other cars, had Chevy drive lines, and there were Canadian plants that made the same parts as used on Chevys. Engines is a good example.
Some Canadian Pontiacs, and other cars, had Chevy drive lines, and there were Canadian plants that made the same parts as used on Chevys. Engines is a good example.
To avoid tariffs (really - even then) Canadian built Pontiacs were Chevrolets with Pontiac outer panels. Frame, engine, transmission and rear, all Chevy. You can see a Canuck Poncho coming with its wheels sucked in unlike the Wide Track genuine Ponchos we enjoyed below. Plymouth & Dodge avoided tariffs by using one interior for both ... my 61 Canadian Plymouth wears a Dodge interior.
