I did take your advice and did the oversized self tapping drain plug. I didn't grind it down. Should I just see how tall the stock plug is and grind down?
Even the stock OEM drain plug is to long. If you were to grind the plug down enough that you couldnt see any of the threads on the bolt, with the aluminum washer in place, you wouldnt have but like 1/4" left of the threads, which is just about the thickness of the case where the drain hole is located.
If you had a way to do it, best way would be to taper the end of the bolt, so that the oil could pass through the hole & around the bolt, but either way the bolt threads will end up shorter.
Neil