Reference plane

How to ground revel? Before we proceed to scale and adjust any wheel alignment and axle constructive geometry, the ground plane should be prepared well as a fundamental standard measurement reference plane. It was done at new garage before long utilizing bottom connected bottles based on Pascal's law, I just imagined to utilize pendulum device that is used for camber scaling actually instead. Then the accuracy of establishment of ground plane would be far improved as to equivalent with that of scaling device. Those are essential to the accurate datum collection on earth, so, what should be better should be introduced if better results are desired. The frontal main bar in BC7 SUBARU Legacy LSi US model has moved forward and as a matter of fact, the axle constructive geometry and the wheel alignment had been changed into some lawless conditions at all. Modification and adjustment are urgent needs for BC7 now.