Time warped

MY DEALER gave up trying to fix the rattle in my BA Falcon's brakes. With reference to warped discs in Falcons, my vehicle travelled about 80,000km before the problem arose. Before retiring, I drove company Commodores for about 100,000km a year. Warped discs were a big problem. We had discs machined once and after that replaced with new units, but to no avail. On all new vehicles, we would replace discs with a grooved aftermarket disc after the original became warped.