I have heard that at some point(s) in the new boxset commentary, Steve-O verbally bashes Bam Margera so much that they nearly come to blows, or at least, get verbally aggressive with each other.

Is this true, and, if so, at what point(s) does this occur?

(I am not really a big fan of commentaries, and really wouldn't care to watch one on Jackass, anyway, but I am interested in this one part.)

Yes this does happen, but am not sure of the exact skit, time or anything.

I haven't heard the commentary myself. I read somewhere though that the arguement was about Steve-O commenting that Bam's skits were all set up.