It is a 17mm allen. Go to schucks/kragens/checker and they will have a
wrench for this job specificially. I think it costs about $3.75.

yep, that is the drain.  Make sure you can first remove the fill plug
before you drain her though.

cheers
-matthew

Matthew Pollard          "Racing with the wind and flirting with death
Dept. Of Chemistry        So have a cup of coffee and catch your breath"
University of Idaho
www.uidaho.edu/~poll7356