question 1 - I have yet to succeed to remove the plug without marring it up some, some folks use a big flat washer and vise grips...
question 2 - I put in 1 pint, half a quart, or 16oz...no problems, its just a chain and 2 gears, if it is overfilled, it will just blow some out of the transfer case vent, (first time i changed it, i overfilled it)
question 3 - yes, it should work, I use Mobil 1 75w90 full synthetic
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