replaced lower control arm but when I turn touches brake rotor

So sorry -- unfortunately, the only suggestion I have is to seek guidance at a local repair facility near you. There's no way I can guess about the installation of the part or what may have gone wrong or if it's even the correct specified part in the first place… Or if it's an aftermarket part that is not built the way the original one is. Too many questions and nothing can be done without observation in person. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.