Speedometer Calculation

Asked by Nov 03, 2014 at 04:04 PM about the 2011 Chevrolet Silverado 1500 LT Crew Cab 4WD

Question type: General

I had 265/70/18 tires installed on my 2011 Silverado 1500 4wd. I think the speedometer is
off now. Is there an easy DIY solution? Thanks in advance. The factory tires were
265/65/18.

4 Answers

11,955

You can use this conversion table to calibrate your speedometer: http://tire-size-conversion.com/speedometer-calibration/ OR you you can reprogram the ECU to make the MPH correct on the gauge with a tool like this: http://www.hypertech-inc.com/products-speedometer-calibrator.aspx

1 of 1 people found this helpful.
11,955

After entering your tire sizes, you're only about 2 mph off (slower) on the MPH gauge than the stock tires. Not much to worry about unless you want to get the speedometer dead accurate. Going from a 70 to a 65 series is not a huge jump so it's not that far off.

1 of 1 people found this helpful.

When I calculated it from http://tire-size-conversion.com/speedometer- calibration it says + 2 mph not - 2 still not a major difference, but you stated (slower).

11,955

Ahhh.. Sorry about that. Yes you are correct. My mistake. Smaller tires = faster speedometer. Thanks for the correction.

Your Answer

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 169,791 nationwide Silverado 1500 listings starting at $1,000.

ZIP:

Chevrolet Silverado 1500 Experts

  • #1
    John Carson
    Reputation
    2,660
  • #2
    Rowefast
    Reputation
    2,000
  • #3
    Silverado_owner_2006
    Reputation
    1,710
View All

Related Models For Sale

Used GMC Sierra 1500
1,038 Great Deals out of 66,431 listings starting at $2,495
Used Ford F-150
2,610 Great Deals out of 198,105 listings starting at $1,300
Used Chevrolet Silverado 2500HD
323 Great Deals out of 30,580 listings starting at $3,500
Used Dodge Ram 1500
379 Great Deals out of 10,831 listings starting at $1,500
Used Toyota Tundra
483 Great Deals out of 33,804 listings starting at $2,000
Used Toyota Tacoma
587 Great Deals out of 44,877 listings starting at $1,790
Used Ram 1500
1,025 Great Deals out of 110,671 listings starting at $6,900
Used Chevrolet Tahoe
743 Great Deals out of 41,783 listings starting at $1,995
Used Chevrolet Colorado
279 Great Deals out of 34,514 listings starting at $1,900
Used Ford F-250 Super Duty
338 Great Deals out of 45,696 listings starting at $1,700
Used Chevrolet Camaro
451 Great Deals out of 30,881 listings starting at $2,495
Used Nissan Titan
211 Great Deals out of 20,699 listings starting at $3,390
Used GMC Sierra 2500HD
109 Great Deals out of 13,965 listings starting at $2,999

Used Cars For Sale

2018 Chevrolet Silverado 1500 LT Crew Cab 4WD For Sale
14,709 listings starting at $35,999
2017 Chevrolet Silverado 1500 LT Crew Cab 4WD For Sale
20 Great Deals out of 9,414 listings starting at $31,902
2016 Chevrolet Silverado 1500 LT Crew Cab 4WD For Sale
32 Great Deals out of 1,535 listings starting at $26,500
2015 Chevrolet Silverado 1500 LT Crew Cab 4WD For Sale
65 Great Deals out of 2,442 listings starting at $18,995
2014 Chevrolet Silverado 1500 LT Crew Cab 4WD For Sale
68 Great Deals out of 2,811 listings starting at $17,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.