Transient of steering reaction

ABS system block has disassembled before throwing away that had been removed from BC7 SUBARU Legacy LSi US model 3 months ago causing oil piling problem carried out by my own mistaking. When brake master cylinder was replaced for periodical maintenance I gave too much violent pressure on the brake pedal before air bubbles had been contained in the pipe line to ABS block.
An activating power motor, actuators and electric controller box were kept for some emergency spare parts including oil sealing O rings also. Many a special mechanical parts were incorporated in the system.

The steering reaction of VW 1302 Super Beetle has considerably improved after the rear trailing arm outer bushes adjustment just by 180 degree rotation. I can feel the rear wheel positions on both side probably because of the elimination of unnecessary compliance including inconvenient hysteresis phenomena. To my surprise the transient characteristics of steering reaction while turning has changed into far better one, of course the straight-line stability also increased in addition to rising characteristic from a straight running phase.

I want to conclude on the experiment this time, very trifle change on rear lower arm hinge bush could cause remarkable change of steering reaction, changed rear compliance does affect on the frontal steering reaction with close ties each other. Comparing the compliance of rear axle, the thrust has increased after the treatment, the latter result is the correct state of course!