For a minimum of hassle I used a moderate spring lift 2,5" on mine.
Adding some weight front and rear and you stay within the original design limitations.
You can run some large tyres 33 " and have a great vehicle.
If you want even larger tyres and don't mind sluggish acceleration and braking you can then lift the body several inches. And you're into 35" tyres game.
Everything will still hold up to moderate 4wheeling and sidehills aren't to big of a worry.
What will probably happen with these size tyres is that the vehicle really doesn't have enough weight to make them work, so you're running around with slick mud coated donuts.
Even at near zero pressure, great for sand, but useless in sticky mud.
Such large tyres on normal rims also are the antichrist of the balancing shop.
To get the 35" tyres to work it is recommended you spin them when in mud, using the centrifugal forces to clear the muck. High power mudding equals high maintenance vehicles.
Or as they say: You Play, You Pay!