At least that is what I assume it is. Let me explain:
A couple of weeks ago I was able to hit well past top speed going downhill. Now my speedometer needle is all over the place. I've seen it go all the way around 360 degrees well past zero at normal cruising speed.
I don't think it is the cable, because I hear a grinding sound coming from the display.
I also think this problem is adding way more miles to my odometer too.
For those who know, does it sound like I have located the problem? Can I buy a new replacement part or do I need to begin the hunt for a used part or entire ignition box?