"Brakes making grinding noise!" --- metal back plate to the rotor
Race day --wheels off, gear box out, clutch in pieces - meticulously measuring things, trying to figure why no drive --bemused by all this frantic activity, casually rotated a wheel hub only to reveal the lack of rotation of the axle
( broke axle at the outer CV --a testament to the boot for making it look normal)
Engine running hot and smells like BBQ