I know this isnt a suspension ? but I have seen many pics on here of trucks with the body lift and it doesnt look liek you need a gap gaurd kit for it. Is this true or is their still gaps on the 04-07 with a body lift? Also, would I be able to clear 35X12.50's on 20X8.5'' wheels with a 3inch bodt and a leveling kit?

 

all body lifts cause gaps because they are lifting your body off the frame
you should be able to fit 35s as long as the wheel backspacing is close to factory

 

You will be able to see the gaps without the guards
Check my gallery

 

I agree. Get the Gap Guards