Ok for a while now the speedometer has been acting funny.
Sometimes it works fine.
And now it works bad all the time.
Most times when going around 70 (or any speed between 35-80) it just bounces around from 30-50 (very erratic).

And here recently my Trip-o-meter and my Mileage meter has stopped working.

Anyone advise I've never had to deal with this problem before.

I did search but everywhere I look everyone has a different solution.

 

check your speed sensor located on the trans.