Welcome to the forum brother.
Above post is correct. The tire rubbing on either your sway bar or lower control arm is due to the width of your tire and the backspacing of your wheel.
To fix the issue 3 options...
1. adjust the steering stop...will work with the 10.5'' wide tire...wider tire...no go.
2. new wheels with less backspacing.
3. wheel spacers.
If you do plan on going with an 11.5'' wide tire soon....skip the spacers and adjustment of the steering stop. Your stock wheels are an 15x7 with 5.25'' backspacing. Too much back spacing for that wide of tire and the wheel is a little narrow for a 11.5'' tire. Best bet is to do it correctly and purchase new wheel to correctly fit the tire. A good wheel for the 32x11.5'' would be an 15x8 wheel. Backspace of 4'' to 4.5'' would work awesome.
PS....aint lackland fun.