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Changing Tire Size on 2014 Silverado 1500

danny68327

By danny68327
in Modifications & Accessories

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danny68327 Enthusiast

danny68327

Posted
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Hi, I have a 2014 Silverado (5.3 - 342:1 ) with stock 265/65R18 (31.6") tires on it. I would like to put a leveling kit (2in) and 265/60R20 (32") or 265/70R18 (32.6") tires on it. Would this be detrimental to the truck in any way? I don't want to alter the ride or mpg too drastically. I also tow a trailer that weighs about 8,000 lbs full (only tow it 2-3 times a year and mostly flat ground). Do I need to have it retuned after?

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AgDoctor Senior Enthusiast

AgDoctor

Posted
Posted

What rim size do you want to run, because the first size you listed is a 20. If you ate happy with your 18s then the second size you proposed would work. You could probably fit them with a leveling kit too.

 

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danny68327 Enthusiast

danny68327

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What rim size do you want to run, because the first size you listed is a 20. If you ate happy with your 18s then the second size you proposed would work. You could probably fit them with a leveling kit too.

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I would rather run the 20" inch wheel, but if it is going to affect towing, performance ride etc... then I will run the 18.

Braaap60 Enthusiast

Braaap60

Posted
Posted

Many people say the 18's ride way better than the 20's. I love my ride with 18's and have 2" in front and 3" blocks in rear.

turbo98 Enthusiast

turbo98

Posted
Posted

I have a rough country 2" leveling kit on my Sierra and I'm running a 275/60/20 and I'm not rubbing at all and I haven't noticed any change in ride quality nor fuel economy.

SouthCo Senior Enthusiast

SouthCo

Posted
Posted

Going with a 20" wheel/tire combo will not affect your towing. Going to a slightly taller tire (per your post an inch or less), will not require a retune. It may lower your mpg every so slightly, but I doubt you would really notice it.

danny68327 Enthusiast

danny68327

Posted
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Going with a 20" wheel/tire combo will not affect your towing. Going to a slightly taller tire (per your post an inch or less), will not require a retune. It may lower your mpg every so slightly, but I doubt you would really notice it.

 

Awesome, thanks. Nice truck!

AgDoctor Senior Enthusiast

AgDoctor

Posted
Posted

Going with 20s will have less to do with towing but more to do with hauling. By that I mean a load in the rear. The added weight on an ATV on stock P metric tires causes a lot of sag, which increases the likelihood of rim damage. 18s or 20s are fine either one though, which ever you prefer.

 

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Saleenpowr Enthusiast

Saleenpowr

Posted
Posted

You'll have no issues with the ride. As a matter of fact you can get much bigger tires with just the level kit. I went with 295/55/20 and the RC level. In hindsight. I wish I went straight for the 305/55/20 because there is plenty of room on these new trucks.

danny68327 Enthusiast

danny68327

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You'll have no issues with the ride. As a matter of fact you can get much bigger tires with just the level kit. I went with 295/55/20 and the RC level. In hindsight. I wish I went straight for the 305/55/20 because there is plenty of room on these new trucks.

 

How much did the did the larger tire (295/55/20) affect your mpg's?

  • 4 weeks later...
2011corvette Enthusiast

2011corvette

Posted
Posted

I have a 2014 Silverado LZT Z71 with the factory 18" wheels.

I would like the truck to sit a little higher. I don't use it off road so I don't want it to be real drastic.

Will a leveling kit affect towing in any way? I pull a car trailer and a bay boat.

I would like to get a slightly larger tire but would rather not go with a 8 or 10 ply tire if it is going to mess with the nice ride I have now.

I tried changing to a larger tire the day I picked it up but then decided to wait. I haven't seen exactly what I'm looking for yet.

I do want the truck to sit up a little taller.

 

Any suggestions?

danny68327 Enthusiast

danny68327

Posted
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The small change you are proposing will have a negligible effect. See my signature block for my changes.

 

That's a really nice truck. That's the exact stance i'm looking for, how wide are your tires?

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