Is your truck a 4x4? If so I believe you can fit 34-35 inch tires with just a 3" Body lify, a little torsion bar cranking and also a little of trimming. If It's a 2wd then you might want to check out something like I'm getting
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1997 F-150 XLT 4x2 SC 4.6L
Flowmaster 40 Series Delta Flow with 3.5"x22" Chrome Slach Cut Tips
http://www.F150online.com/offroadguy
Being Installed This Week:
-3" Fabtech Spindle Lift
-3" PA Body Lift
-35" ProComp AT Tires
-American Racing Baja 16x8 Wheels
Future Mods:
-4.56 Gears
-Stull Billet Grille
-Clear Corner Lenses
-Euro Taillights