Thanks! I am running 3.55 gears with 34s and doing fine with the combo. I can feel the difference on initial acceleration but the truck still gets up when you want it to.

 

I'm going with the 2" front leveling kit with the 3"rear block.
Duratracs on +18 offset wheels, If I decide to go with a shorter tire....which size would u recommend:
285-60-20
Or
305-55-20

 

Yes.. they both like the wallet. Your trucks are the reason i would stuff 34~35" tires with a nice level kit in the future.

 

The 285s will be appprox. 11.7 inches wide on the 20x9 wheels and 33.5 inches tall. The 305s will be approx. 12.2 inches wide and 33.2 inches tall on the same wheels. Going with a +18mm offset, I prefer to fill up the wheel well more so would go with the slightly narrower but taller tire (285s). Also, they will do better on gas and turn in feel over the 305s. Plus, I believe you should be able to avoid any trimming with the 285s but quite honestly either is going to look good because the 305s will give you a slightly meatier look!