An option is to open the box and remove the second reduction gear.   This will
transform the box into nothing more than a connecting shaft between the two
halves of the speedo cable and a place to connect the OXS wiring.   Obviously
the OXS function will be eliminated by this.

John McLean   87  Vanagon  GL

>
>
> Does any one know if there is a speedo cable that will eliminate the box
> that divides the two
> cables? The box on mine seems to be jammed and I don't really see the need
> for it. All it does is
> remind you to change the O2 sensor, doesn't it ?
>
> David