So I have a 4x4 2018 Chevy 1500. I just trying to figure out if im just going to need the ring and pinion gear only. Because I don’t know if there is some electrical stuff also because it’s a 2018. I see kits also but with more then just a ring and pinion so I’m just hoping someone can help me on that. If I’m going to need a whole kit or just ring and pinion.