Good lord!

 

That is rifreakindiculous! i had no idea there was that much drop in gas mileage. That makes me do a lot of thinking.

 

I'm constantly getting 13 mpg in the city with 37x13.50x20s.

 

What motor do you have and what gears?

I have a SCAB 4.6L 3.55 gears. that hurts turning 35's. also i dony know exact. i dont have the mpg thingy in the dash i can only do the math when i fill up

 

5.4L/3.73LS

 

im guessing your going to get better mpg with the bigger motor and better gearing. not sure. the only mods i have are IMCO SISO and a K&n filter

 

Have both of you re-calibrated your speedometer/odometer for larger tires? If you didn't your gas milage will seem worse than it is.

 

that is a good point. NO i HAVENT re calibrated my speedo. its off about 10 or so mph. so im assuming my MPG should be 13-14. Im going to save up for a programmer. Havent really done much research on them but i know troyer has been around a long time so i might give them a call

 

i measured and got 46" from the ground to the inside of the fenderwell

 

nice truck. Im looking in to putting the daystar on top of my 6" fabtech as well. Did it mess anything up or would you do it again.