Slate33

If i buy a moto fab 2 inch leveling disk, would i have to replace my upper control arms with aftermarket ones? Ive seen two different answers from american trucks.com and now im confused...ive never put a leveling kit on any of my trucks so im not sure exactly what im getting into and all what it entails (2017 Silverado 1500) are they recommended but not required? Id rather not snap a ball joint and screw my truck up....TIA