I just put on 305/55R20 Nitto Terra Grapplers. I am not sure what my current gear ratio is. I think its 3.73. I have a 2008 King Ranch F150 4x4 with the 5.4 V8. If I were to regear should I go to 4.11? I knew what I was getting into when I put bigger tires on but it would be nice to have the gas mileage back.

 

3.73 to 4.10/4.11 wouldn't be worth the money. A 4.56 set is really the only way to go.