Slant six distributor drive gear

The hole that the roll pin goes in to hold gear on dist. shaft. The hole in the gear you purchase has a hole but is not in the right place. With all the reading I've done I still don't know it's purpose but what I do know is it is not for the roll pin. See .org links above for details or factory service manual. I suppose a Chrysler design engineer is laughing his @ss off some where. I guess it might a reference point of where to roll gear to drill the hole in the proper place??????????????????