My speedometer
I had installed 2 slightly new nitto terra grapplers size 305:80:r16
and i had to unplug the battery to install a new cd deck but now my speedo is all wack its off by 15mph untill i hit 75mph what should i do?
and i had to unplug the battery to install a new cd deck but now my speedo is all wack its off by 15mph untill i hit 75mph what should i do?



