1998 1500 3 in lift on 35" . It only happens when I take left turns it makes a weird rubbing sound have no idea what it could be at all, just started doing it today I don't know what it could be

 

Since your running 35s im gonna assume they are wider than stock or you have rims with a different backspacing than stock. If so it could be the tires rubbing the frame or splash sheild or some other suspension parts at lock. get under there with a flash light and look for clean spots from tire rub. It could be that parts have started to fatigue allowing your tires to start rubbing which is why you are only now starting to hear it.