This thread will answer a lot of questions you might have, you'll have to scroll down to get to the part about the tires.
Also, some more info would be good--do you have the 3.7l, 4.7l, or 5.7 hemi? AWD or 2wd? Have 4lo switch?
If you have awd (or 4x4 if you like) make sure the tires you having given to you are all worn the same--having one or two off can mess up your awd system--before installing them.
silver '06 4.7l, leather, no sway bars, BFG A/T with MTR tread (TreadWright) 265/70/17, 1.5" spider trax, get lost 4x4 front bumper and rock sliders, custom lift (OME front springs with spacers, 2.25 RR in rear)