Cross threaded a rear lug changing the tires back to street yesterday. Tried to chase the thread with a die and apparently removed too much material in the process rendering the lug nearly stripped. Not surprised as bad a shape as it was in to begin with.

Q1: Do I have to pull the axles on an 8.8 to beat the old lugs out and press in new ones? If yes never mind answering 2 and 3.
Q2: If I can beat them out with a mallet do I need to block the axle up in some way to prevent damage to any bearing from the impact of beating them out?
Q3: Is there a way to use a large C clamp to press the new ones in with or is there a special press used to do this? I have also heard of people drawing them in using a lug nut.

Thanks