Gunson G4008 Trakrite Wheel Alignment Gauge

will this item track back wheels or just the drive wheels. Also once correctly tracked is the steering wheel centre horizontal when driving straight.

How i set toe assuming that the steering wheel is not centered and left and right wheel are misaligned. Can each wheel be adjusted independently?

Hi,would this work on a wheel that is set with a slight negitive camber (0.5 degrees) that would be applying more pressure on the inside of the tyre?

How wide of tyre can this accomodate