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One tire size up on LTZ

Adam79

By Adam79
in Modifications, Wheels & Tires

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Adam79 Enthusiast

Adam79

Posted
Posted

Hi all,

I’m new to the forum here but have been browsing. I recently bought a 2019 Silverado LTZ with the 6.2. I love the truck so far! 
I want to change out my factory 20’s. I’m wondering if I can go one size up without leveling? It looks like I have room to go to a 285/60/20.  33” vs 33.4” roughly. Has anyone does this? 
I’m also toying with going with 17’s and more meat on the tires! I do not want to level the truck as I like rack that I have. Any pics of 17’s on a non leveled truck as I can’t seem to find any!!

127217DD-6AED-490D-B98A-9C5E826BF628.jpeg

Ezekiel2517 Enthusiast

Ezekiel2517

Posted
Posted

I have an LTZ with max tow package.  I am pretty sure you could fit a 285/60/20 on there without issue.    I dont think a 305/55r20 would fit though.   Both are 33.5"  

JSW74 Enthusiast

JSW74

Posted
Posted

the factory 275/60/r20 is a 33x10.8 and the tire in question 285/60/r20 is 33.5x11.2 according to tiresize.com online calculator. In my humble opinion you will be fine. to my knowledge where issues arise is when you go wider. these newer trucks dont like the wider tires cause they will rub or be in constant contact with the upper control arm. but the tire you suggested should be just fine, a snug fit but will fine

Adam79 Enthusiast

Adam79

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Posted
2 hours ago, JSW74 said:

the factory 275/60/r20 is a 33x10.8 and the tire in question 285/60/r20 is 33.5x11.2 according to tiresize.com online calculator. In my humble opinion you will be fine. to my knowledge where issues arise is when you go wider. these newer trucks dont like the wider tires cause they will rub or be in constant contact with the upper control arm. but the tire you suggested should be just fine, a snug fit but will fine

Thank you for your input. That was what I was thinking and what I have been finding in my search. Now I need to decide which tire..sigh and if I keep and powder coat my current wheels or go aftermarket. 
 

Adam79 Enthusiast

Adam79

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I can’t seem to find and pictures of a 275/75/17. This is just a touch bigger than my factory size 275/60/20. I’d like to stay with factory suspension but add some sidewall and fill up the well.  Only 17” pic I can find is a 315/75/17 so I assume that a 275/75/17 would look similar just not as wide. 
Do you guys think this size would look odd? 

Flatblack83 Enthusiast

Flatblack83

Posted
Posted

Staying with the 275 the width will stay right at 10.7-11. The sidewall the middle # just makes it taller. Looks like the 275 75 17 is 3/4 of an inch taller which realistically is 3/8 of an inch all the way around bigger . Turn full lock and measure to see what u have. You will know for sure then. (Their was a post with 275 65 20s that they drove it home from the tire shop b4 it was leveled with no rub.)

 

For instance I leveled my 19 custom. Stocks like what u have 275 60 20s. I did a 295 for a little more width, its an inch taller and an inch wider. I have plenty of room. I could of fit bigger for sure but it would rub.

Donstar Senior Enthusiast

Donstar

Posted
Posted

FWIW   The sidewall of your stock tire is only 0.5 of an inch smaller than my stock 17's.   Move up to a 285 mm width and this difference is reduced to 0.3".   The middle number in your tire size expresses the  percentage of your width that is the height of the side wall.  ie:  60% of 275 mm (10.8") give you a 6.5" sidewall.  I understand the personal feeling of "improved" looks by going slightly larger but nothing else is gained.  You will achieve optimal performance with good tires sized the same as posted in your door pillar.  If you are really determined to go with the big wheel look, and a little drop in performance isn't a concern, then a level with larger tires will give a much more noticeable change in appearance. 

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