Yukon Gear ring and pinion

i do not know if this has ever come up before but it concerns Yukon Gear ring and pinion sets for the 742 case.
i purchased a set of 3.55's and while trying to set the pinion bearing preload , the shims used were being distorted and the preload would be all over the map.
i noticed that Yukon leaves a small radius at the shim location on the pinion gear -- factory Chrysler gears are undercut at this location so the shims sit flat to the shoulder.
once i corrected for this defect the preload set perfectly ---

i did send a e-mail to Yukon about this --so maybe it will get to their manufacturing people and this defect can be corrected.

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