Where the hell have you been, W1N?
I wouldn't worry about the rearend. Really, have you ever heard of one blowing on an H2? Even from wheeling hard? No, it should be fine.
Now, I would worry about those front tierods. Get the Fabtechs because a lot of stress is put on them while accelerating like that. Spinning tires that grab traction pop the rods all the time.
