white06

I have a Nelson 93 octane tune plus 160 thermo and mines a regular cab. I usually get between 20-22 on roadtrips doing 80-85

Chevy_Truck_Man

I had 3.42's and got 3.73's and my mileage went up almst 2 mpg... and I highway drive it at 70 mph every day.

ineedatruck

im hoping with 4.10s itl help my mileage cause with the 3.23 and a 4.8 ive got my foot planted init every where..to pass someone i gotta just floor it. half the time takin off grand ma in her civic is pulling passed me and ive got it planted...sucks..