If you're only going for looks and don't want to spend a lot of money, a body lift is the way to go. If you are looking to go higher than 3", a body lift/suspension lift combo will work, other than that, you'd be looking at swapping out the front suspension with a solid axle and a lot of custom work.
Here's a link for a new body lift:
Here's a photo of my truck for reference - it's got the PA body lift installed and 33" BFG A/T tires.
2004 Ford Ranger Edge manual 4.0 4x4 with 3" Body lift, 33x12.5 BFG A/T KO's, on Eagle Alloy 057 rims, and alot of mods
2011 Ford Mustang GT 5.0 manual with Flowmaster American Thunder exhaust
2005 Ford F250 automatic 5.4 4x4 with no mods