273 commando

65formula said

Actually no..
The power disc brakes was a dealer option...
On the tag under the letter “C” has the number 5 which is power brakes option

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You can have power disc's, but you'll still have the single master cylinder.
Kinda hard to read that, but I still maintain the dual system master cylinder was not available 'til '67...just the single pot unit up to then...

Early Valiant Barracuda Club - dual master cylinder