Odometer off - Re calibration

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steve rooney

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Have you ever check your odometer to see if it's correct? I did and it's almost exactly 1/10th off per mile. I did the math for about 170K miles and that equals 17000 miles above actual. Anyone ever have their odometer re-calibrated? I have the same tires that came from the factory so no changes there. Very curious about re-calibration of odometer.
 

MrBalll

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No, never done it. Not too much of a reason with these trucks. The tranny and engine last a good long time so 170k vs 153k isn't much of a difference in my eyes. Once over 100k it's all the same really.

I've never read of anyone else on the forums doing it and I keep up with most of the posts. Who knows, maybe someone will chime in with info.
 

Doubeleive

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mine is off by about 2/10'th build sheet says it came with 18" but at some point it was changed to 20", I asked the dealer about calibration and they said it was kind of a moot issue and that they probably couldn't even get it any closer, I could change it with my hypertech but just have never bothered it's not off enough to even get ticketed.
 

Thouse

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mine is off by about 2/10'th build sheet says it came with 18" but at some point it was changed to 20", I asked the dealer about calibration and they said it was kind of a moot issue and that they probably couldn't even get it any closer, I could change it with my hypertech but just have never bothered it's not off enough to even get ticketed.

My 04 has 16 inch tires I believe (non z71). I wanted to put 17 or 18s on with mild AT tires. Will this throw off the odometer?
 

Fless

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@Tyler Houseknecht, you could use a program to compare -- this is one of many out there: https://tiresize.com/comparison/

I changed my OE 16x7s to 18x9 takeoffs from a 2015 Silverado. Went from 265/70R16s to 265/65R18s, and the 18s were maybe 3/4" taller overall. The speedo read a little high before, now it reads slightly low (when it says 65mph I'm going about 66mph actual.)
 

Thouse

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@Tyler Houseknecht, you could use a program to compare -- this is one of many out there: https://tiresize.com/comparison/

I changed my OE 16x7s to 18x9 takeoffs from a 2015 Silverado. Went from 265/70R16s to 265/65R18s, and the 18s were maybe 3/4" taller overall. The speedo read a little high before, now it reads slightly low (when it says 65mph I'm going about 66mph actual.)

Thanks. I figured getting a slightly thinner sidewall would help compensate.
 

adriver

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My 04 has 16 inch tires I believe (non z71). I wanted to put 17 or 18s on with mild AT tires. Will this throw off the odometer?

Depends on the tire size. Mine is not much of a difference, but I run 265/70/17 when my factory (going off QNF RPO CODE) was 235/75/16 (on a Silverado) is a 1.72" tire height difference. I've compared it against a GPS and when it says 65, im doing 69. I forget sometimes, but if I'm doing 80 in a 75 because I think I can get away with it, I'm really doing 85 in a 75, or 95 in an 85, which I probably won't.
 

Thouse

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Depends on the tire size. Mine is not much of a difference, but I run 265/70/17 when my factory (going off QNF RPO CODE) was 235/75/16 (on a Silverado) is a 1.72" tire height difference. I've compared it against a GPS and when it says 65, im doing 69. I forget sometimes, but if I'm doing 80 in a 75 because I think I can get away with it, I'm really doing 85 in a 75, or 95 in an 85, which I probably won't.

Thanks so much for the input. So you ran the 265/70/17 without any rubbing issues?
 

adriver

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Thanks so much for the input. So you ran the 265/70/17 without any rubbing issues?

I'm running that size on a Silverado, not a SUV. I'm not certain if everything up front is the same or not. I get the slightest rub with 17 x 7.5 ET 31 with those tires at stock height at full steering lock on the sway bar. If I let off even a 1/4" I don't rub. You would be better off finding out how someone with a Tahoe/Yukon does it.
 

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