GM twins now J2807 compliant
http://news.pickuptrucks.com/2014/06/2015-chevy-silverado-1500-and-gmc-sierra-1500-are-j2807-compliant.html
Forum Discussion
I am also glad that GM got on the bandwagon. I think they should have done it with the new 2014 half ton release. The home of the "liars contest" is in the HD pickups as it relates to tow ratings, at least in my opinion. I look forward to seeing all three compliant with their HD pickups.
