Canadian cars?

Dartnut said
When he says it has the '72 brakes, he probably means that it is small bolt pattern (4'') instead of big bolt pattern (4 1/2'').
A lot of people don't know that when you ordered a slant 6 from '73 till Jan 1, 1976, you automatically got small bolt pattern wheels and drum brakes all around, this is unless you ordered power brakes on a slant 6 car, or a V8, then you got the good big bolt pattern brakes with discs by default.
Starting on Jan 1, 1976 big bolt pattern and disc brakes were standard no matter what you ordered for an engine.

True and correct on the bolt patterns, but small-bolt 9" (with front wheel cylinders newly enlarged to 1-1/8") and small-bolt 10" drums all around, with or without power assist, were available on A-bodies through at least '74. Federal Motor Vehicle Safety Standards for brake performance and pedal effort were tightened with effect from 1/1/76, which is why front discs became standard and boosters became more boost-y. There was a 2-stage upgrade in the standard-equipment brake system on the A-bodies; stage one was in late '75. My "Chrysler Corporation Vehicle Engineering Changes for 1976" book is in storage; if anyone still cares the next time I'm near it I'll post the specifics.

Seat belt warnings and emissions stuff was different sometimes than Canadian sold cars versus U.S. sold cars on cars built in Canada for the U.S.market, depending on the destination.

Sometimes, but not always, especially on the cheaper cars (6-cylinder cars, A-bodies...). Many or all Canadian-sold '74 Slant-6 A-bodies got the seat belt/starter interlock system that was briefly mandatory in the US, for example, even though it was not required in Canada. And although Canadian emission standards were not as strict as US standards until the mid-late 1980s, and some Canadian-spec Chrysler-built cars had less emission control equipment than their US counterparts (e.g., '81-'83 K-cars equipped to run on leaded gasoline), often the Slant-6 cars had US-spec emissions even in Canada.