Transmission Pan Bolt broke while changing filter

[aricanderson]

hi everybody.  Well I got the radiator in just fine last week.  And this weekend I changed out the automatic tranmission filter.  Well lets just say that I brought a torque wrench and really did not know how to use it, but now I definiteley know.  The problem is that one of bolts on holding the filter broke while tightening it, I'm not worried about that one the filter is tight on the tranmission.  The one that I'm worried about is one bolt that broke that holds the oil pan for the automatic transimission.  So now its leaking.   What is the best way to fix it.  Do I need to take off the whole pan and drill out the broken bolt, knowing that part of the transmission is aluminminum.  Or can I drill it out with the pan so on there.  Any suggestions, please help so that I can get this problem solved then I can move to changing the diffential oil, thank god for no pans or bolts to take off.