Thinking about 3/3 "leveling"

I'm interested in changing my leveling kit from 3/1 to 3/3. My truck has some sag so I've posted my truck and someone else's on Tundra Forums. Apologies for posting someone else's truck but I think it looks great...just not sure if it's 3/3.

 

I had a 3/2 leveling kit and the rear on mine sat 1 inch higher than the front.

 

I had the same issue after I added a 3 inch shackle....added a leaf spring and solved the issue..