Rear Brake Line Pressure Regulator Valve on a 68 RS
I've got a 68 RS with power front disc brakes and rear drums. I've bought new brake lines an a rear brake line pressure regulator valve (on the subframe under the drivers door) because I thought this was correct for my car. From my readings on CRG I find that this would not have been correct for my car.
I want the car to be accurate so I wanted to get opinions before I buy the one piece brake line. I assume it would do no harm but I want the car to be period correct. It's a 04D build if that matters.