My speedometer guy said go ten miles, and mark the odometer reading, then go
back and do it again. The difference is all he needs to make a box... mine cost
around $40 or so.
al
>
>
> cable to correct for final drive ratio and tire size?
>
> Bob McCarthy >>
>
> Bob - just about any speedometer shop in the yellow pages will have them.
> Mine came from Jim Kanomata who sells the 3.55 and 3.70 final drives. His
> number is 510-440-1101. He advertises in GMC Motorhome Marketplace. I'm
> sure he can set it up for whatever correction you need. You would have to
> supply whatever shop you order from the info on final drive ratio and rev per
> min of the tire (or tire diameter) that you can get from the tire company.
>
> Emery Stora
> 77 Kingsley
> Santa Fe, NM
