Depends on your willingness to use the chop saw, but I dont see that big of tire to be practical my any means for a daily driver.

a 3rd gen here has a 6" lift and he rubs with the 38's. i think the 3rd gens fit bigger tires because the wheel wells are round. i have around 10" of lift and the front axle is 2" forward on my 96 "1/2 ton" with 39.5 x 15.50's. i think it will depend on how much rub bothers you.

One of problems is the control arms, not just width. You need to reposition the axle forward. Not all Lift kits do this properly. It might also help to run a negative offset wheel.
With a set of good control arms and the Negative offset Custom wheel you should be able to run those tires.
Matt

You can fit 38in tall tires on the truck no problem, but 14.50's, no way:nope:

u goda pic of it?? id love to see it. i was wonderin if i could swing 39 on a 6 inch lift in getting.

I'm rolling 14.5s on mine with about 5.5" in the front, I don't think an extra 1/2 inch is going to clear that extra 4 inches of tire (well, 2 inches from the hub to where it's going to hit the bumper). I kicked out my bumper an inch, too.
From experience, it's not so much the 39 part that is going to hurt you, it's the 15.5 part. I'd go with an 8 inch if you want 39s. I'd also roll 4.56 gears with 39s.

the ones i want are 39 14.50 ona 20 inch wheel. so they the same width.

There is a member on this site who has 39.5's with a leveling kit and a 3 inch body lift. i cant remember his handle though:humm:

can anyone post pics of a truck with 39s pleeeaaaasssseee or just pm them to me.

Hey ms smokin,
have in mind that going higher most of the times involves a bunch of other things like new alignment, quicker worn out bushings...
Bigger tires pull on your chassis, more weight gives all involved steering parts a hard time to work.
Going higher is just the inital cost. It always has a rat tail on it.