I'm looking to buy 2011 to 2013 Avalanche. My question is if the integrated brake controller is ordered, what rear end is available. Is it the 3.08 or the 3.42. I have looked at a few Avalanches locally and the ones that had the integrated brake have 3.08 rear ends. I thought 3.42s were the only ratio available with the brake controller. Thanks for any info.