Speedo correction for larger tires?
When is it necessary to get a speedo correction for larger tires? I went from a 265/75 to a 285/75 both 16 inch. Would the height even change?
Forum Discussion
You can have the computer re-adjusted to get the correct speed. Ford dealers can do this, but call to check the price first, not just have them do it then pay later.
Also check for a speedometer shop, they should be able to do it quickly and for a small fee.
You can also buy a GPS for about $100, and it will give you the correct speed all the time, allowing you to figure out your actual speed VS the display. So your truck will continue to show say 50 mph while your actual speed is 65 MPH or whatever. So when you drive on a 65 mile trip, the odometer will only show 50 miles traveled. So should you be getting 11 MPG on that trip (66 miles = 6 gallons) you would use 6 gallons but only show 50 miles on the odometer, indicating only 8.2 MPG.
If the difference shown on GPS is only 4 MPH at 65 miles per hour, then changing the speedometer to make it correct seems a bit pointless. It might just burn up $50 quickly.
Fred.
Also check for a speedometer shop, they should be able to do it quickly and for a small fee.
You can also buy a GPS for about $100, and it will give you the correct speed all the time, allowing you to figure out your actual speed VS the display. So your truck will continue to show say 50 mph while your actual speed is 65 MPH or whatever. So when you drive on a 65 mile trip, the odometer will only show 50 miles traveled. So should you be getting 11 MPG on that trip (66 miles = 6 gallons) you would use 6 gallons but only show 50 miles on the odometer, indicating only 8.2 MPG.
If the difference shown on GPS is only 4 MPH at 65 miles per hour, then changing the speedometer to make it correct seems a bit pointless. It might just burn up $50 quickly.
Fred.
