Clay Franche

So I'm looking at lowering my LT Z71, at least 3 inches. So far the only complete kit I've found is the Belltech Performance Handling kit. Any insight on this kit? I hear it may cause problems lowering a 4wd this much. Things like pushing the knuckle too far back in the wheel well, causing alignment/fitment issues. Has anyone found an alternative to this kit? I'm not against Belltech, I just like to have more than one option when I'm making a large purchase. My truck currently has a 2 1/2 inch leveling kit and 315/45R20's. I don't tow anything larger than a small tent trailer or have anything bigger than dirt bikes in the back. I never see anything harsher than a gravel road, however I am from somewhat northern Canada which is why I went with the Z71. https://www.belltech.com/products/belltech/lowering/complete-lowering-kits/belltech-performance-handling-kit-14-18-1-2-ton-silverado-sierra-all-cabs-short-bed-987hk.html