The back brakes of my car are drum brakes. Whenever i press the brakes, there are like squeeky sounds coming out from it. I've brought the car for skimming the back brakes but yet the problem still persists. I've thought of changing to a disk brake but i think it's expensive and needs JPJ approval according to the mechanic. The mechanic said that it's rust forming in the drums and don't pose any harms but i still find it irritating because it squeeks really loudy. No changes in terms of stopping the car. The only way where i could take the sound off is to take the brakes for dusting and he blows off all the dust and it's quiet and like after 2 weeks the sound comes back. Anyone other solutions? THanks