Originally Posted by dodgeramguy85
10.50's shouldnt rub at all. Maybe if you have a tire that has good side wall lugs. My truck had 11.50's on it and it barely rubbed.
I bet you were running 32x11.50's though. Width is only part of the equation. As the tire gets taller the edges will get closer and closer to the frame when you are turning at full lock. There is a chance that you could run a 30" tall tire that is 14" wide and not have it rub but a 35" tall tire that is only 8" wide might rub. I know these are not tire sizes, I'm just making a point. I definitely have rubbing on the frame with my 33x10.50's and it would only be worse with a 33x12.50. No lift will be able to help with that. Wheels spacers are the ticket, or just not turning the wheel all the way (that's what I do).
Now most 32x11.50's would clear the frame without spacers, a few of the more aggressive tread patterns might not. A 33x10.50 might depend on the brand of tire. Mine are BFG mud terrains. The AT's might be slightly smaller and clear without rubbing the frame.
And yes, you will be just fine to run 33's with a 3" body lift as far as fender clearance goes. Probably don't even need that much. After you get the tires you can decide if you need wheel spacers or not. I decided against it because they only rub at full lock and I just don't turn the wheel that much. I do have to warn people who borrow my truck though.
If I were you and had a v6 I might be looking at the 32x11.50's. I love the 33's on my truck and with the 5.2 it does well off road and can still cruise on the highway, but it still feels a bit bogged down at full highway speed and acceleration is a bit more sluggish, although nothing like it was with my 2.5L Jeep YJ on 33's.
32's might give you what you're looking for without bogging down the V6 quite as much.