You don’t mention year of car but are you sure it’s not drilled at 12/6 and 9/3 O’clock positions?
If not rather than a spacer washer you could take a little off the back of the nut but to be honest I have never seen it required in quite a few I have had apart for king pins, brakes or bearings.
You also don’t mention the indexed washer that should be behind the nut anyway? Maybe dislodged?
BR
Colin
