i'm currently about to buy a set of discs and pads for my car, goin for the 3g discs, although i wanna make sure i buy the correct ones. There is two to choose from, one does up to 92 with a 54mm centre and the other i think does 55mm? is this correct, and if so which would be for my car? Mine is a 1992 model ep82. Would i have to take off my discs and measure?