I have a 2012 F350 with the 6.7. It is bone stock with 79,000 miles on it. I'm looking for some info on lifting it. I'm not sure how high I can go before I start messing with the axles. I think I want more than a leveling kit but also don't want to go crazy. I was thinking about maybe a 3". Any info would be greatly appreciated. Thanks in advance.