i have 2009 ram 2500 what is the best lift level kit so my truck drives like a factory truck what size tire does it fit please help

 

If money isn't an issue, either the KORE or Carli leveling kits will be your best choice. The least expensive option would be to run spacers. With the proper length shocks, spacers will ride ok. 315s (about 35 inches) will fit. Superlift has a few options as well.
Something to keep in mind...when you go to realign your front end, setting the caster will be a bit of trial and error to find what works best for your setup.

 

I'm running 35/12.5/17 on the rear of mine with no lift. I played with them on the front just to see if they would fit and they did. It had a little bit of a rub at full turn but nothing that would be too bad. That's on a Stock ride 2WD so if your running a 4WD they should fit just fine.

 

I run 325 70 17's on mine with a 2 inch leveling kit from hell bent steel, and they clear fine

 

I LOVE my Kore setup on my truck! Fits 35's no problem and rides better than stock! Do a search for Kore on here and you'll see all my pics and kit I went with and it has links to Kore as well.

 

Ready Lift 66-1090 2" coil spacer. You will be able to run 35x 12.5.