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We had a bit of an advantage when it came to extracting max braking performance from this Z28 since it came with factory rear disc brakes. The rotors measure the same as the fronts, 10.5 inches, and although the calipers are slightly different from the fronts, they take the same Hawk pads. Since a car's front brakes do most of the work, on the order of 70-80 percent, anything we get here is a bonus. That means if your car has rear drum brakes, there's still much to be gained by upgrading to Classic Tube's stainless braided hoses in the rear.