Finally got a chance to check out what went wrong on the Accent. I’m guessing this stuff is just brake dust that clumped up when it got soaked by brake fluid?

So stupid question time. I know the ones on the side with the leak need to be replaced, since they’re soaked in brake fluid, but on the other side, could I get away with just replacing the wheel cylinder and leaving the shoes in place? That side seems fine, but I figured I should replace the wheel cylinder on it just to be safe.