wondering about updates

[2005turbodiesel]

I have the u7130 and i was wondering if there is an update to adjust the trucks computer for bigger tires. It says it can change the speedo to correct for the bigger tires on the manual. I have not been able to find it in the programmer anywhere. I was just wondering if i needed to buy the usb cable to load an update on the programmer Thanks for your help in advance

Part Num:u7130
pred rev: v.9R01

2005 dodge ram 3500 slt 5.9

[johan]

The U7130 does not allow for tire size changes.

[2005turbodiesel]

Is there going to an update? or do i need to find a different way to change

[mikel]

It is not possible through the Predator on the 03-05 trucks.