Yea so i have signs by my house that tell u how fast your going.. I just baught my car not to long ago.. and everytime i go past the sign, it tells me im doin 10 mph slower then what my speedometer says. Possible gears in car? or just sumthin else is messed up?

 

Gears and no speed calibrator.It does make you wonder what else was done half assed.

 

the speedo would read faster, unless they had 3.73s and corrected and put the sotcker back in and didnt correct back, or differenet height tires