Suspension question

So I'm new to the Tacoma world from jeep and I know the suspension works a little different. First off I have a 2015 Tacoma TRD sport. I'm looking at running 33" tires. The only thing is I was wondering what the difference between a 3" and a 4"/4 and a half" lift is? I know 3" lifts usually come spacer kits and I see the 4" changes the whole drive axel but there has to be more to it. Does anyone have pictures of their lifts with the tires? I want a really aggressive good look so what's the biggest tire you could fit on a 3" lift 4" and a 4 1/2"? Trying to do my research before actually pulling the trigger. All info is appreciated.

 

Here's mine:

3" mid-travel Icon suspension lift.

Total Chaos Upper Control Arms.

Heavy Duty Icon Springs because my bumpers, winch and pack rack are steel and heavy.

Rims:

Vision Manx 398
16"x8"
0mm offset
4.5 backspacing
6x5.5 bolt pattern
110mm bore spacing

Tires:

Hankook Dynapro AT tires, 285/75/16 (A little over 33" in height)

AllPro front bumper, and shaved the cab mounts... so I have no rub at full lock

http://imgur.com/OcW7Dye

Here's my truck, the sliders are on order... so pay no attention to the shitty stock running boards.