Name this chevy speedo cable part
Can anyone tell me what this device is and why it is inbetween the speedometer cable and the housing of the sm-465 4 spd manual transmission on my truck? The cable will screw directly to the transmission so this must have some purpose. It also says "made in usa" on it so it might be illegal...
It is made by by stewart warner. I've run the truck without it today and I can tell the speedometer is off some without it.