revs per mile for 285/70/17
 

just replaced my michelin's, 245/70/17 tires. i went with bf goodrich ta/ko's, 285/70/17. i checked to different sites. one site tells me 616.6 revs per mile, the other site says 636 revs per mile. that is a big difference!! any help?

Just did the same thing with my 04.5 as well. I just went out and talked to my tech that redid my speedo and he said the correct rev should be 627. He checked this with a GPS and it was right on the money.

thanks man- i appreciate it!