2015 6 inch lift w/ 35s

I just put a 6 inch lift on my 2015 Tacoma with 35x12.50R17s. For the most part I have no complaints but, I am noticing a power loss especially on the major hwy trying to go anything over 70 mph or going up any hill. I am currently running a 4.10 gear. Is regearing something I need to consider maybe a 4.56? My gas mileage isn't sucking too bad at the moment and I don't want to do anything that is going to worsen it. Will leaving it as is put a strain on my transmission?

 

Better off with 4.88s, don't know of a company that makes 4.88s for the 3rd gen rear end though. The difference between 4.10s and 4.56s is negligible.

Edit: I see you're a 2nd gen, go with 4.88s for sure

 

I just put 35s on yesterday and went with the 4.88 gearing and I'm so happy I did. I feel if I went 4.56 my truck would still be under powered. My initial setup was 6" lift with 33"s on stock gearing. Drive slow as a turtle. Now it's like a whole new truck.

 

Running a 4.88 gear doesn't kill your gas mileage?

 

Another couple grand into that lift package...... dont forget you need to do both ends.

 

I'm on a 6" lift with 35"s I didn't expect to pull any good gas mileage. I think I'm averaging 13.6 but that was before the new gears and tires.