2006 duramax suspension
 

i have a 2006 chevy duramax 2500 hd with a 2 1/2 inch lift i just got rid of a set of 20 inch wheels with 35/12.50 tires and got 17s with 35/12.50s and now they rub the bumper and inner fender but the 35s with the 20s didnt. any ideas how to fix it so i dont have to do any cutting or any more lifting?

What the BS and offset of the 17's? Or you could try and get a smaller tire.

Let me ask this, it has a leveling kit on it now if I were to do. Suspension lift would I need to remove the leveling kit and put the truck back to stock before doing the lift?