For a tire that large, definitely go with an 8" wheel. Make sure you get proper backspacing , or you'll be running the taller tires into the steering gear or frame on full-lock turns and/ or during full compression bumps.
If you have an automatic transmission, go with the 5.29's for either tire. The 4.88's and the 33's are just about ideal for a manual transmission vehicle.
For any tire taller than 31", you'll need either a body lift or ball joint spacers for the front. Some 'have' put 33's on and flattened the fender seam at the firewall for clearance 'without' using a lift, but take care on the passenger side when pounding that seam flat with a hammer. The ECM (engine computer) is right behind that seam, in the kickpanel inside the cab.
MIke in AR