I have a 2012 Chevy 1500 4x4 with the Z71 package. I'm wondering if anyone knows the largest tire size I could put on my truck? I want to eventually get new rims and tires, so I need to figure out how much to save up. I want to go as large as possible without having to lift the truck body or suspension. Thanks for any info! Also, I was considering doing a leveling kit, and someone told me that could blow out the universal joint since the front of the truck would be at a different angle, anyone know if that's correct?