Speedo is 10mph off.......
I replaced the Speedo cable on my 86 5 speed and noticed that my mph is off by 10. The gauge reads 25mph and I'm at 35mph on my GPS. I know my GPS is accurate for sure. I bought the car like this. I used the same Speedo gear when I replaced the cable. Anyone know what gear I can buy to correct this? As far as I know the rear end is stock. Thanks