The only think I had to do was trim the valance, but you have a different one than I did. You might would need the 4x4 valance which would bolt right to your bumper. Plus it would be a good excuse to get some oem fogs. Other than that, I didn't need to do any modifications for the bullbar. It came with mounting brackets that just bolted right to the frame. I bought it off ebay for $150. It was a great bullbar, I finally put the skid plate on right before I sold it.
Hey man, just made an album of my old truck. Its full of pictures from stock to till I sold. I have pictures of it with just the spindles, 2'' blocks and 265s and more. Just go to my albums and click show all albums and it'll show up. Scroll all the way down once your looking at the album to see the older pics first. If you hold your mouse on the pictures ( dont click, just hold it there) the suspension set up and tire size will show up for you. If you have any questions feel free to ask.