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275/65/20 2020 Sierra

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I have the same truck and lift. 285/65/20 rub bad.  You will probably have minor rubbing with 275/65/20 since it’s still a 34” tire. I’d go 285/60/20 if I could do it again. 

let us know how it works for you. 

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I have a 2019 Z71 RST with a 2.5" level and 20x9 0 offset mayhem wheels. I had 285 55 20 AMP Attack pro on there and no issues at all. I replaced them today with 275 65 20 Cooper discoverer AT/3 XLT today and had to minor trim the mudflap on the front. Had a small amount of rubbing at full lock in reverse. 

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On 3/12/2021 at 6:02 PM, Nvenegas said:

2020 GMC Sierra with leveling Kit and I was able to fit the 275/65/20 Ko2s no rubbing no issues. Was skeptical at first but did a test fit and was surprised how much clearance there was compared to previous models  



Hello, I’m thinking of doing the same. Mind telling me what leveling kit you used? Also, do you think the tires would clear without the leveling kit?



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