usmcduncan001

hey guys. i just filled up for the first time with the predator on the economy/ performance tune. want to check my mileage, but i want it 2 be accurate. cant find anything in the predator manual to recalibrate the speedo. any help would be outstanding. i went from 265/75 r17 to 33x12.5 17. when i did this my mileage dropped from about 17-18 to about 14-15.

Little03

Im not to sure but I dont think you can recalabrate your speedo on the 03-04 trucks with the diablo sport.

Nick.

usmcduncan001

I didnt know that. but now i started readin a bit about them and that sounds about right. i thought when i bought it they were all capable of doing that

usmcduncan001

does anyone know of how to get it recalibrated, or am i just stuck with it this way

2003Ram

Take it to the dealer with revs per mile number for your new tires.

usmcduncan001

do you have any idea what a dealer charges to do that? i wish diablo would come out with a download to make it where you could do that

Dodgezilla

You need to tell the dealer that you want your Pinion Factor reset. You will need the correct revs per mile for your particular tire. The dealer will probably charge you $45-$85 to do this for you. It only takes 10 minutes and some guys have even gotten it done for free.....