odo reading

[jay menna]

i have a 2002 chev with 285/75 16. i know my speedo and odo are off. but by how much. is their a way to calculate the correct odo reading? i dont own a down loader and dont see me buying one for a while.

[jbplock]

Jay,

Try this link for a tire size calculator (requires java) ...

http://www.miata.net/garage/tirecalc.html

Per the calculator, running 285/75/16's on a 2500HD which expects 245/75/16's would yield a spedo reading 7.8% low.

:)