So I was driving on the highway today and everything was fine up until about 40 mph. At that speed and above my speedometer started making a whirring noise and the pointer started wiggling back-and-forth by about 15 or 20 mph back-and-forth, back-and-forth.
I pulled the speedo gear from the Dana 20 and it looked tight with all the gears in tact and then I pulled the speedometer and it looked and felt like it was attached correctly also. I thought it might be loose but it's tight.
Any ideas or experience with a jumpy speedo?