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?

[AzDRiFT]

Been working on Z's and G's for years and never seen one. Plenty of 400+ examples too.

[chingon]

Crack in the rear subframe - G35Driver (http://g35driver.com/forums/g35-sedan-v35-2003-06/349898-crack-rear-subframe.html)
Rear Subframe Cradle - Nissan 350Z Forum : 350Z / 370Z Tech Forums (http://www.350z-tech.com/forums/165-aussie-classifieds/69974-rear-subframe-cradle.html)

nissan's switch to stamped steel on new z's also raise an eyebrow (could be cost-cutting measure however). I'm just wonderingn people are just not paying close enough attention or these are random occurrences.

[Corbic]

never heard of one cracking

I would suspect the swap to stamped steel is not a cracking issue but because since the 350Z came out Aluminum prices have gone up 400%.

[yokotavia]

Ive seen a few cracked ones from very light impacts. like hitting a curb and such. Im a tech at a nissan dealership..