Posted by Ron L on February 26, 1999 at 14:33:54:
In Reply to: Mustang Speedometer posted by Juice on February 26, 1999 at 09:50:35:
I hope my math isn't off too far. The new tire/wheel combo would have a circumfrence of approximately 5 percent larger, so your speedo may be reading about that much lower for your actual speed. I hope this helps.