Hello, just picked up a 2007 Silverado 1500 z71 that has a 5.3 with a 4L60. I plan to swap in a 6.2 with a 6L80. Before you ask why I didn't just buy one with that setup is because I got an extended cab with the extra short bed. Which was only offered from 07-09. 6.2 wasn't an option then. I found a good deal on a setup out of a 2012 Denali with everything needed to do the swap, the only issue is the Denali was AWD. I know I will need to use a 4wd transfer case, hopefully my stock one, but I'm unsure of anything else I will need to do to make this compatible. Any input is appreciated. Thanks.