Steve:
I have a '95 Rodeo equipped with a GM 4L-30 transmission. Have had that pan off many times and if the threads in the body(not the drain plug) are the issue, Manny may have your answer.
The unit I'm speaking of is shown at the following URL. If his looks like this, be sure to drain BOTH pans - part 1 and part 73.
http://www.slhondaparts.com/browse.asp?Model=PASSPORT&Year=1995&TrimLevel=4DR+LX+4X2+V6&TransLevel=4ATKA&Section=C&Category=ATM04++%7CAT++++++TRANSMISSION+OIL+PAN%2D+OIL+CONTROL&Doors=4&Emissions=KA&PartCatalogId=50691+&ViewParts=true