Generally Jeep speedometers get more accurate with larger tires.

How did you get your numbers?


"Cal" > wrote in message
m...
> 97 wrangler, just put 31's (tires) on it. Speedo says 64 when actually
> going about 70 now. Tire guy said may make 1-2 mile per hour difference,
> but this is lots more! Any adjustment, or just get used to it?
>
> thanks
>
> cal
>
>