Did you adjust your speedo for the different tires size. I would GPS check your speedo, seems like good mileage, but a little too good with a 2 inch lift, bigger tires, and at 70 MPH with 4.10s in a 4x4 Truck.

 

Bob Wagner jim you do have the beta 4.11D BTA44
Thank you, I didnt understand what i had. Goes to show ask and you will recieve help.

 

trk396-believe it!!!! with 4.4 and x-2 on hwy mpg just got 300 miles on .25 tank dont know what it = because i pump from a tank in the back .this tune is great thanks sooo much bob&marco!!!!

 

My 03 HO has the same results. Also get 19 in summer, half hwy half 35-45 stop start hwy. I would like to mess with something else, but my 4.4 is this good so why? I just drive mine so it does not smoke and it gets great milage.

 

snoyes Did you adjust your speedo for the different tires size. I would GPS check your speedo, seems like good mileage, but a little too good with a 2 inch lift, bigger tires, and at 70 MPH with 4.10s in a 4x4 Truck.

Yes i set the speedo. And like i said 65-70 and most of the time 65mph tach at 1850-1900 rpm. Truck just ran GREAT thats all i can say. I wish it did better but this seems to be as good as anybody is getting. And i dodnt know if this makes that big of a difference but i run (AMSOIL) through out the whole truck. Leveling kit and 315sBFGs ATs