The usual question we will begin asking is what do you want your truck to do? If your intentions are to crawl, I would say that you need to make good friends with the man from milwaukee Mr. Sawzall /forums/images/graemlins/grin.gif. You should be able to fit the 40''s with major trimming and possibly the addition of a 1'' zero rate (front and rear) and/ or a longer front shackle for another 1'' lift. Moving the front axle forward will also help with tire to firewall clearance /forums/images/graemlins/cool.gif (this can be done with the 1'' zero rate.) If you begin to feel faint at the thought of removing that much metal /forums/images/graemlins/eek.gif, you can always add a body lift /forums/images/graemlins/tongue.gif.