did any body get beter mpg with 4.56 gears i only get 12-13mpg and thats with my aem intake, edge programer, and flowmaster exhaust, i think it should get beter when i swap in the 4.56 gears b/c i wont have to work so hard to get up to speed. can any body give me some insite on this??????

 

I got 11 before the gears, and I still get 11.

 

I got 10 with 3.55
I got 11 with 4.56
I got 12 with 4.56 and hypertech programmer
hope that helps