The M38a1 i threaded the hole and screwed in a bolt and then cut the head off it flush. The one last night..cj3a i just cleaned it good with carb...
That is correct from all my research and is what i have now done to both of my jeeps.
I can answer your first question as i just came in from doing just that...and i did it with the tranny in the jeep...but while the engine is out....
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