id do 4.56 minimum. i have 4.88 on my truck and wish i went with 5.13

 

ok sounds good what rpm are you at doing 70mph?? cuz i no i will loose gas milage right??

 

thats a popular misconception. lower gears means higher rpm but LESS LOAD. load kills mpgs, not rpm. think about it, when was the last time you got better milage while towing at 2000rpm then when you had no trailer turning 3000rpm. you should see a noticable improvement in mpg since you have 35s. even with stock tires, if you went to 4.56 you could still see a gain in mpg if you keep your foot out of it.