How common are cracked rear subframes on the 350/g35?

[Chingon]

I'm talking about Al. units, not the new stamped steel ones. Anyone can give a ball park? 1%? 10%? Issues above 400 lb-ft?

[PalmerWMD]

Chingon, I never heard about the rear subframes being an issue.

rear half shafts and such will often break over 500lbft especially if launched hard thats the most common issue I hear about in the drive train (other than obviously clutches and/or non built engines) at high power.