2015 2500 HD Leveling Kit/ Tire Size

chris42w · October 22, 2015

Alright Guys,

I know this topic has been around for a long time, and every time a new body style comes out it starts over again.

With that being said, I would appreciate some opinions/pictures of a 2015 2500HD with a leveling kit and bigger tires running stock 20s. I know the wheel wells are smaller on the 15s than the 14s (more square). I bought a new HD a few months ago and want to know about the different leveling kits and the biggest tire that can be ran with NO SCRUBBING OR TRIMMING. I definitely do not want to go the cheapest way out on a brand new truck with only doing keys and I don't want to do a lift kit.

Thanks fellas.

crankman · October 23, 2015

Dang I think your truck looks damn good. Like white trucks I left the rake on mine cause we haul gear all the time.

Vailbuilder · October 23, 2015

I'm running 275/70/18 on mine with no lift and have zero issues

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chris42w · October 24, 2015

Awesome truck man! You dont have a leveling kit or anything? Doesn't look like it just making sure.

I'm running 275/70/18 on mine with no lift and have zero issues

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chris42w · October 24, 2015

Dang I think your truck looks damn good. Like white trucks I left the rake on mine cause we haul gear all the time.

Thank you my friend, Already getting bored with the stock tires ready for something new!

Vailbuilder · October 24, 2015

No lift, I really think I could go bigger. As long as you use OEM wheel cause of the offset you'll be good. It came with 265/60

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crafferty · October 24, 2015

After looking at several companies leveling kits. It looks like 295/55/20 is the biggest size before you start rubbing.

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cullumj1 · October 27, 2015

After looking at several companies leveling kits. It looks like 295/55/20 is the biggest size before you start rubbing.

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i have the Fabtec 4" level and running 35's. I scrub a little while turned all the way left or right but thats it.

crafferty · October 27, 2015

i have the Fabtec 4" level and running 35's. I scrub a little while turned all the way left or right but thats it.

That sounds about right. Seems like all these GM trucks now days are 33" with 2" level, 35 with 4" or 6" lift and 37" with 8". But you have to watch your offset too. For example I have 35/13.5r20 Toyo R/T's with -24 offset and rub at full lock in reverse when not on flat ground. Other than that I'm fine. Now if my lift didn't increase my track width by 1.5" on each side I'd be ok.

Big Whiskey · October 29, 2015

The Cognito level kits are very popular. They come with new keys, new upper control arms, and shock extensions or new shocks. And guys are running 34" tires on stock rims without any trouble. Some are running 35" with minor trimming. If you're keeping your stock 20" rims, then I'd look at 275/65/20, 285/65/20, 305/55/20, or 295/60/20. If I had to pick, I like the look of 295/60/20's best.

searay220 · August 13, 2016

I cranked up the torsion bars 6 turns just to get the front leveled up. I'm getting some new Fuel wheels 9x20 and I want to go to a bigger tire. What size should I go with?

Dirtbiker · August 13, 2016

I cranked up the torsion bars 6 turns just to get the front leveled up. I'm getting some new Fuel wheels 9x20 and I want to go to a bigger tire. What size should I go with?

I just put Fuel Flow 18x9 with +20 offset and 275/70/R18 tires. So that is 33.2 x11 size. I leveled the truck 2 inches and have factory plastic mudflaps. If I had the typical rubber 1/4 in thick mudflaps they would rub. Right now I have zero rubbing and I think even without the torsion bars cranked up it would be ok. But any bigger will rub.

rocnrol · August 20, 2016

I cranked up the torsion bars 6 turns just to get the front leveled up. I'm getting some new Fuel wheels 9x20 and I want to go to a bigger tire. What size should I go with?

I went 8 turns and fit 35/12.50's no problem

searay220 · September 13, 2016

Just got my Fuel Nutz wheels 20x10 -12 offset with lt295/55r20 E Toyo AT2. I've got about 8 full turns on the stock torsion keys and put shock extensions on. It's not quite leveled and has a slight rake. I'm very happy with the stance and the looks however I'm getting some rubbing on the mud guards. I was able to wire tie the front felt out of the way so no trouble there. I need maybe 1/4 of a inch more clearance at the mud guards. How can I get a little more clearance without any major surgery? Has anybody experienced this?

dmax_ty · September 14, 2016

Alright Guys,

I know this topic has been around for a long time, and every time a new body style comes out it starts over again.

With that being said, I would appreciate some opinions/pictures of a 2015 2500HD with a leveling kit and bigger tires running stock 20s. I know the wheel wells are smaller on the 15s than the 14s (more square). I bought a new HD a few months ago and want to know about the different leveling kits and the biggest tire that can be ran with NO SCRUBBING OR TRIMMING. I definitely do not want to go the cheapest way out on a brand new truck with only doing keys and I don't want to do a lift kit.

Thanks fellas.

The 15+ actually have more room than the 2011-14 trucks. Most guys are going with 275/65/20's on stock rims with no problems but some are also throwing on 295/60/20s and larger on stock rims with no problems.