I did a search and I found that a lot of people were having the same issue, but not much on how to solve the problem. I have a 71 GT and the speedometer bounces between 30 and 50 while driving. I thought it was the cable at first so I replaced it and that didn't fix the issue at all. So my question is if it is the speedometer how do I fix it? and if it isn't the speedometer is it the gears on the transmission perhaps? Again how would I fix that if it were the problem.
I really appreciate everyone's help and I think this site is awesome.
I really appreciate everyone's help and I think this site is awesome.