2011 Jeep Wrangler 3.8 ltr engine
the 4 inch lift is going to be a drag right there on your gas mileage. I would go with 4.56 and keep the 33's or go with the rubi take offs as stated below (just rubicon tires and rims that someone took off
). if you are concerned about mileage. You will be lucky to get 15 to the gallon.....
I have a 2011 JKU auto Rubicon with 35x12.5 and the stock 4.10s and it is a dog I never get to use od. Any small grade and it starts hunting for gears. I got 13.5 mpg highway for a eight hundred mile trip. I am going to install 5.13s very soon. In town driving is around 11 mpg. I don't recommend 4.10 and 35 in tires with an auto.
I wouldnt go 4.10s Im happy with 4.56 but I thank I would of been happy with 4.88 to, with 4.56 I can downshift to 5th and not be screaming and flat land with 4.56 is great it a toss up beats the 3.21 any factory 17s



