more lift question

alright guys I have an 05 with a 6'' fabtech on it, well I'm running 20x14s and my tires rub really bad when i drive on the beach, which is an all summer thing for me, so i decided to lift my truck up some more, my buddy has 1.5'' coil spacers that i can just have, i just don't know if its that simple to just put the coil spacers up there and be aright or will i have to do some other modifications like different control arms or anything like that, so any input is extremely appreciated.

 

Stacking lifts is a bad idea. Where are the tires rubbing?

 

at the bottom of the fender towards the door, i didn't think that would be stacking lifts, its not like its stacking coil spacers