I called and talked to the dealer again. He went out and talked to an actual dodge diesel mech. who told him it was no problem. The service guy got back on the phone with me and told me to bring the truck in when a "smart tech is in". He apologized for wasting my time last week and made me an appointment with the "smart tech". I thought it was funny. So I should be good to go after tomorrow. Thanks for all the help guys! I greatly appreciate it!

One more question though. From what I read adding the 285s should improve fuel economy with 4.10 gears. I have not seen it at all in fact my over head is reading 1-2 mpg lower. Is this because of the tires directly or because the odometer is off?

Thanks again,
John

 

Don't expect an increase, but the mileage will not be accurate untill your speedo is accurate. Check it after the correction


John

 

After the tire size is corrected, will the overhead computer MPG be as accurate as it was with stock tires? I mean I know they aren't dead on accurate but....