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Username Post: 2020 Silverado tire size change        (Topic#370140)
Posts: 41
Age: 55
Loc: Minneapolis MN
Reg: 04-02-11
11-21-22 07:35 PM - Post#2850336    

I have a 2020 High Country K1500 with the 3.0 diesel. I want to change the 275/50R 22 tires out to 275/55 R22 for better snow/water traction and hopefully a little taller side wall will give a better ride. My question is will the taller tire cause any problems with speedometer readings, issues with ABS/traction/cruise control or any other potential issues?

Member #2440
Posts: 7881
Loc: SAV
Reg: 09-26-01
11-21-22 09:29 PM - Post#2850339    
    In response to regbob

That's about 1 inch difference. No big deal. Speedo will be off a couple of MPH.

Site Ambassador
Posts: 15741

Loc: Baltimore, MD
Reg: 11-27-04
11-22-22 09:55 AM - Post#2850349    
    In response to Matt

Actually I come up with a little over 1/2 an inch (275 x .05) since the tire aspect ratio is 55% compared to the stock 50%. A 5% difference. That comes to 13.75 mm, which is about .54 inches. I put on tires about 1/3” taller on my truck and it made no difference.

Friends don’t let friends drive Fords.

1999 Silverado Z71 4X4 extra-cab short bed
1983 Malibu Fauxmad - tubbed
1978 El Camino Kustomized
1972 Monte Carlo
1957 210 handyman wagon
1957 Nomad sport wagon
1957 Cameo Carrier

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Posts: 1788

Loc: Orlando Florida
Reg: 07-09-18
11-22-22 03:11 PM - Post#2850357    
    In response to regbob

I do know that some vehicles are super sensitive to the wheel speed sensors compared to the engine and transmission speeds. Depending upon the software in your vehicle systems, you might get ABS codes because the computer will see the wheels spinning slower than the computer expects to see them spin.

There are also parameters in the transmission that calculate slip and may also be an issue.

Drive it and see. If you have issues, your dealer can calibrate for larger tires.

People fear change because it threatens what they know, or what they claim to know.

Super Senior Member
Posts: 6189

Loc: paradise
Reg: 09-05-03
11-24-22 10:23 AM - Post#2850433    
    In response to regbob

i have never had or heard of any problems

70 L camino, grampa engine, g-force 5 spd, road rage suspension. Pray first before all else fails.

"5th Year" Silver Supporting Member
Posts: 358
Loc: Portland, OR
Reg: 04-16-13
11-24-22 10:44 AM - Post#2850437    
    In response to regbob

If you really want a better ride, switch to the 18 inch tires and wheels that come on a LT Z71. I have had two of these trucks and have a great ride. The more rubber the better the ride.

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Posts: 5584
Loc: Lake Superior-Michigan US...
Reg: 03-30-00
11-30-22 01:17 PM - Post#2850742    
    In response to Tony1963

This is a quote right from GM service.

  • Quote:
November 24, 2020
When changing tire and wheel sizes on 2003-2021 GM models, a new tire calibration will be needed. GM offers tire calibrations for tires that have been sized, tested and designed for the vehicle in question and its applications. Other tires that do not meet these qualifications will not be supported and tire calibrations will not be available.

2021 GMC 4WD Sierra Denali Ultimate 6.2L/10-sp
2022 Polaris RZR XP 1000 Ride Command
2017 John Deere X738

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