67 ss/rs with ac. Brake modulator on frame question

[westonz28]

Sorry no partial vin on low HP Camaros in 1967 not required,  Only the valuable ones got the vin number stamped on them for insurance reasons. To many people stealing them. Yes in 1968 and after.

[67jeffreyt]

So I date checked my brake booster and it is a 69 Camaro drum booster.  So my car was manual drum brakes originally,. Maybe that makes the valve not a necessity, even though I have air conditioning