I don't know the torque specs off the top of my head. It's in most shop manuals, though. As for breaking the bolts loose, I have used a 12-point box end wrench and hit the end with a dead blow hammer to break them loose. When installing, I tighten them as tight as I can get them by hand and try to get another 1/8 to 1/4 turn using the same box wrench/dead blow hammer routine. I haven't lost a drive shaft yet using that technique. But torqueing with a torque wrench is the correct procedure and one that I would recommend using especially if you have never done this before.