Consideration

Unexpected result was obtained yesterday while measuring on click-clack noise from the right side drive shaft joint, DIJ, of NCP10 TOYOTA Vitz, just exchanging replacement of frontal tires on R/L eliminated the nervous noise thoroughly after all. The noise making portion is not always the direct reason for that, the noise was only the result as an indirect influences from any physical and geometric reason? Deeper consideration on the strange phenomena led me to some hypothesis that there have to be any tangential distortion on tire tread may be caused by the wheel it self or adaptation of tire on wheel, distorted tread causes lateral force when rotated, lower arm is forced to move axially and laterally, drive shaft inner part is forced to move inside and outside also axially, then the needle roller bearing is shaken with push-pull movement with causing click-clack strange noise.
As the replaced frontal tire tread changes physical property because of different rotational direction has changed the noise has disappeared, but the effective interval might not be long and the inconvenience would come out on the left side next time?