8.75 question

excellent picture of the problem area on the Yukon 742 ring and pinions ( probably the same on the Yukon 741 ring and pinion sets ) before you really get into your set up do a trial set up of the pinion with shims to make sure you have enough clearance on your bearing chamfer for the distortion of the preload shims caused by that radius.--- if all else fails do you know anyone that is a machinist and they could do a very small smooth undercut radius at that area to clear the bearing.