Originally Posted by TJ-Mike
Well there isn't a replacement speedo gear for the 2006 manual tranny for 31" tires, at least I couldn't find one. The speed is not far off. Do you think it is making that big a difference in the calculations?
Depends on your gear ratio. With my 5 speed, 3.07 gears, and 31 inch tires, my speedo is off approximately 10%. I get 14-15 after adding in the 10 percent difference on the mileage. I used a GPS to see how far off my speedometer is.