Both the drain and fill bolts must have been waaaay overtorqued sometime during their life. They claimed the life of one defensless impact wrench, and still will not budge. So, we need to get the case apart and off to be drilled out and tapped.

Okay, the FSM says that if you take the c-clip off, and all the bolts, the trans should just come apart. The c-clip is off, and the washer and two half moon retainer things are off, but the two halves won't come apart more than 1/16" despite some pretty serious persuasion. Any suggestions?