tire sizes and speedo...

[Ryan Baker]

If I was to change my tires fron 255 70 R16 to 264 75 R16 how far off will my speedo be I have heard from 1-2 MPH to 7-8 MPH. what is the real numbers...

Thanks Baker

 

[scott r]

5 mph is how far mine was off before the XCAL fixed it.

 

[Larry Phillips]

Here, try this.

 

[Scott Tanner]

I went from the 235/65/16 to the 265/65/16, now my speedo is right on the money

 

[shawn stonbraker 2]

I'm glad you didn't post a picture of your tires and your "speedo".

 

[James FreemanJr]

I have stock sized tires and my speedo is off by 5 miles acording to my scan gauge.