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What tire size for stock 20" wheels

1990dtgl98

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1990dtgl98 Enthusiast

1990dtgl98

Posted
Posted

Hey guys, been doing a lot of digging and getting some conflicting answers.

 

Im trading in my 2015 silverado for a 2017 Sierra max tow with the 6.2.

 

With the silverado I ran 2.5" front lift with a 2" block in the rear, and Cooper 18" atp all terrains on stock rims. It was the perfect look for me and had no issues with rubbing.

 

With the new Sierra, I need to invest in 20" tires. I plan on doing a 2" under strut spacer this time instead of 2.5, and a rear block again to keep a slight bit of rake. However I'm not seeing many people running the stock rims and offset.

 

Anyone that is could you recommend or tell me what size your running and if it rubs? I'm trying to prevent issues but am looking at 305/55r20 Cooper ATPs.

 

Thanks for letting me beat a dead horse again!

slee3247 Enthusiast

slee3247

Posted
Posted

a 305/55 is about an inch and a half taller than a stock 275/55. It's more or less the width difference and how blocky the tread design is that will determine if it's going to rub.

 

We sell a boat load of AT3s at work (yes, I know you said ATP) and I can't stand how badly they chop even with a good alignment and rotation schedule.

 

Just throwing in my 2 pennies

1990dtgl98 Enthusiast

1990dtgl98

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  • Author
Posted

I know width will play a bit factor. Mainly why I'm wondering about the stock offset wheela and if I can go with a 305/55 or need to stick with a 275/285 width.

 

Personally I have 12k on my atp and had no chop issues. Better than I could say about my nittos. I do think most all terrains with an aggressive and large tread blocks will be more susceptible to chop regardless of brand.

Lgetz Senior Enthusiast

Lgetz

Posted
Posted

305 Coopers, BFG KO2s, Toyo AT2 and similar all terrains should be good. Might have slight rub on sway bar at full lock but otherwise should be alright.

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