An add a leaf would be the better option of the two. The tires I currently have really set off the whole stance IMO. Check the 04-08 section later, I'm about to try and add some new pictures from this summer.
hey man i have the exact same truck minus the 4x4 > anyways i was wondering with a 2.5-3" front level go better with a rear 1.5" AAL or should i go with a block? essentially i love the stance and look of your truck and would love to have my truck stand the same