I have a 4" suspension lift and 33" tires and my truck is getting like 15mpg with the stock gearing of 4.10. I was just wondering if my mileage will improve if I get 4.88 gears and if so what could I expect to be getting once I do? I'm just kinda frustrated I have a toyota tundra with a v8 and it gets 18mpg I bought this little truck to save money lol. I have never had a lifted truck and wasn't planning on getting one but I just happened to find this one and I liked the way it looked I just didn't know it affected the gas mileage this much.

Thanks,
Brian