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

11,585

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.
11,585

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).

11,585

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

Your Answer

Add photo

Related Questions

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 182,493 nationwide Silverado 1500 listings starting at $1,595.

ZIP:

Search Chevrolet Silverado 1500 Questions

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 2,410
#2 Rowefast
Rowefast
Reputation 1,950
#3 Silverado_owner_2006
Silverado_owner_2006
Reputation 1,650
View All

Related Models For Sale

Used GMC Sierra 1500
779 Great Deals out of 68,588 listings starting at $1,800
Used Ford F-150
2,144 Great Deals out of 195,014 listings starting at $290
Used Dodge Ram 1500
390 Great Deals out of 10,840 listings starting at $1,000
Used Chevrolet Silverado 2500HD
295 Great Deals out of 28,355 listings starting at $1,500
Used Toyota Tundra
461 Great Deals out of 34,661 listings starting at $2,500
Used Toyota Tacoma
522 Great Deals out of 43,037 listings starting at $1,995
Used Ram 1500
965 Great Deals out of 111,960 listings starting at $5,386
Used Chevrolet Tahoe
579 Great Deals out of 32,753 listings starting at $1,500
Used Chevrolet Colorado
242 Great Deals out of 27,196 listings starting at $1,000
Used Chevrolet Camaro
351 Great Deals out of 31,305 listings starting at $2,500
Used Ford F-250 Super Duty
320 Great Deals out of 44,646 listings starting at $1,450
Used Nissan Titan
167 Great Deals out of 18,986 listings starting at $3,000
Used Dodge Charger
529 Great Deals out of 28,863 listings starting at $2,500

Used Cars For Sale

2017 Chevrolet Silverado 1500 LT Crew Cab 4WD For Sale
72 Great Deals out of 27,884 listings starting at $32,129
2016 Chevrolet Silverado 1500 LT Crew Cab 4WD For Sale
17 Great Deals out of 1,240 listings starting at $28,795
2015 Chevrolet Silverado 1500 LT Crew Cab 4WD For Sale
37 Great Deals out of 1,794 listings starting at $22,480
2014 Chevrolet Silverado 1500 LT Crew Cab 4WD For Sale
40 Great Deals out of 2,056 listings starting at $17,498
2013 Chevrolet Silverado 1500 LT Crew Cab 4WD For Sale
55 Great Deals out of 1,714 listings starting at $14,000

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.