6.0/4L80 Speedo Question

[cuervo]

grrr. I did my tire roll out and got 104.5 but BFG saide it was 105 so I went with that and I'm off by 1.5 mph. But that's a ton better then almost 20.

So, it cost me about 45 minutes worth of work to correct the DRAC and no money!!