[Van]

Well that freakin' lower plug on my engiine finally stripped the threads on the gear case. I took the LU off and brought it to the dealer. They gave it a valiant try by drilling out the case, and installing a helicoil for the plug. But it would not hold during the pressure test.
The helicoil is not perfectly aligned to let the plastic washer make full contact.

We talked about a few fixes (such as just sealing right over the plug with marinetek or like) and forgetting about it. But I am way to picky to do that. Sooooo I took the LU home and talked to my machinist here at work. Heres step one of the plan. I will remove the helicoil and see what depth of metal remains. Seems there is plenty of material before I'm into the gearcase for some new threads. I removed the carrier to access the inside of the plug hole.