a) center punch, drill, helicoil, done.
b) center punch, drill, Easy Out With help from blue wrench, if it does
not begin to turn easily with heat, STOP, See step "a"
c) center punch, drill, Easy out, Easy out snaps off, try to drill around easy
out with smaller bits (they break off too), hours or days later, with
transmission probably out now, the hole is all @#$%^ed up and egg
shaped, you wind up cutting threads wherever they might touch, smear
the helioil in JB Weld and NEVER mention it again to anyone... truck is in
local auto trader two days later :-laf
Please note that Step "c" is only recommended for those of us who
really wanted to work on the truck ALL DAMN WEEKEND

Dave.