I got a little bit done this morning. I went ahead and made the changes needed to have the Drac module read correctly with the tire size and gearing we have. I used the info found on this page
http://tbichips.com/drac/ which was very helpful.
Here's the Drac module.
Here it is opened up. The straight jumpers are what need to be altered, here it is before.
Here it is after. I had to remove one jumper and add 3 more in different spots. We'll see if it's accurate or not!