Hey guys

I just purchased a new truck

2004 Ford F350 XLT
CC dually
2.5 inches in front and 1" in rear

has 10 lug adapters and running 22.5's

My speedo is not reading correctly and the research that I have done seems to only be programmers out there to adjust for up to 35" tires.

My tires are 36" tall

please help !!!

 

SCT X3 with custom tunes can change the speedo but only so much.

 

what is SCT X3 ?

 

Looking for something that someone knows will work for my application...