What speedo gear to use.

I have 32s and 4.56 diff gears and 4L auto. I have noticed that when I am doing a true 100kph the speed is showing 114kph. How many teeth does the factory cog have. I know I know I could pull it out and look but I suspect that there are lookup table around somewhere.

Just see my site David for a full chart etc. www.go.jeep-xj.info
I think you have a Sport which will have 34 tooth it it has never been changed. Otherwise if you had a Limited it would be a 35 tooth. Each tooth you take off speeds up the speedo by 3% or 3 kmh at 100 kph.