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Trail Boss Tires on 18” rims

Chips
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Chips Enthusiast

Chips

Posted
Posted

I know there has been a few threads on this but I wanted one specific to the trail boss and specific to the 18” rims. The Trail boss can handle bigger tires than the AT4 so to lump them together doesnt make sense.

 

What is or who has bigger tires on the stock 18” rims? 

 

Ive so far found that 295/70/18 has been done a few times without a level and no rubbing. 

 

That tires size is fine for me , I would be happy , however there is a rubber shortage especially for odd size tires.

 

my question is has anyone done 35x12.5” tires on the trail boss 18” rims. It seems the 12.5” wide is more so the issue vs the 35”.

 

Does anyone have 33” x12.5” ? 

Im curious because clearly people have 34.6” on stock trail boss 18” no level but they are 11.6” or 11.7” wide.  295/70/18.

 

Please help me out , im debating between trail grapplers, ridge grapplers , open country M/T, open country AT2 Extreme and BFG KM3.

 

 

 

 

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Jmccracken1214
Jmccracken1214

I put falken wildpeaks 295/70 on my TB... I thought they were supposed to be 34” tire but they measure 33”-33.5” tall on the truck. They’re about 1” taller and 1” wider than factory tires. They d

RadoPhan
RadoPhan

I hear ya. I’ve done nothing but KO2s on my previous trucks and they are the BEST tire I’ve owned. The stock Wranglers are trash so I guess anything would be an improvement. I’m using Falkens now sinc

RadoPhan
RadoPhan

I think the 6mm spacer will definitely allow it to fit since it allows .23” backspacing and your only adding .4” total for the whole tire. It won’t stick too far out considering it only pushes it .23”

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flea_sly Enthusiast

flea_sly

Posted
Posted

I'm very interested in doing the same thing to my new 20' TB with same 18" rims. I would like some answers on this matter as well.

 

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Jmccracken1214 Enthusiast

Jmccracken1214

Posted
Posted (edited)

I put falken wildpeaks 295/70 on my TB... I thought they were supposed to be 34” tire but they measure 33”-33.5” tall on the truck. They’re about 1” taller and 1” wider than factory tires.

They do not rob at all. And they handle and ride just as good as the factory tires

heres a crap picture of mine with them and motofab 1” level.

 

35B410A0-C86F-49AF-921E-8CD0AE9A47DC.jpeg

Edited by Jmccracken1214
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flea_sly Enthusiast

flea_sly

Posted
Posted
2 hours ago, Jmccracken1214 said:

I put falken wildpeaks 295/70 on my TB... I thought they were supposed to be 34” tire but they measure 33”-33.5” tall on the truck. They’re about 1” taller and 1” wider than factory tires.

They do not rob at all. And they handle and ride just as good as the factory tires

heres a crap picture of mine with them and motofab 1” level.

 

35B410A0-C86F-49AF-921E-8CD0AE9A47DC.jpeg

Thanks for the information and the pic!

 

I'm looking at purchasing KO2's for the exact same truck you have. I'm going to put on the same motofab 1" level kit on my TB as well.  Do you think 305/65 18 will work without rubbing. According to everyone I have checked overall tire dimension is 33.6"?

 

Looks like the 325/65 18 overall dimension is 34.6. 

316hepster Enthusiast

316hepster

Posted
Posted

Don’t know if this helps but I was able to run 35x12.5x18 toyo mts on my non trail boss w a 2.5 level kit. Had to do some major trimming of the fender liner and remove the bolted on frame caps. Also had 2” wheel spacers. 

4FAA3520-E39A-44E0-BC0F-19586E918089.jpeg

redwngr Senior Enthusiast

redwngr

Posted
Posted
On 8/15/2020 at 12:42 PM, Chips said:

I know there has been a few threads on this but I wanted one specific to the trail boss and specific to the 18” rims. The Trail boss can handle bigger tires than the AT4 so to lump them together doesnt make sense.

 

 

I'll bite.

 

Why can a TB take larger tires than an AT4?

Chips Enthusiast

Chips

Posted
  • Author
Posted
15 minutes ago, redwngr said:

I'll bite.

 

Why can a TB take larger tires than an AT4?


Bigger fender well clearance on the Trail Boss. In both stock and levelled applications the Trail Boss can handle a bigger tire without rub or trimming.

Gangly Senior Enthusiast

Gangly

Posted
Posted

To clarify further, its not just the Trail Boss.  All Silverados have a slightly larger fender opening than the Sierra lineup.

BossTaco2020 Enthusiast

BossTaco2020

Posted
Posted

definitely interested in this too. I love my Trail Boss at its "stock" height and don't want to do even a leveling lift. But I do want to get a slightly bigger tire eventually to fill in the space. So does anyone have larger tires on the stock Trail Boss lift with 18" wheels?

Zeker Enthusiast

Zeker

Posted
Posted
On 8/30/2020 at 7:15 AM, Jmccracken1214 said:

I put falken wildpeaks 295/70 on my TB... I thought they were supposed to be 34” tire but they measure 33”-33.5” tall on the truck. They’re about 1” taller and 1” wider than factory tires.

They do not rob at all. And they handle and ride just as good as the factory tires

heres a crap picture of mine with them and motofab 1” level.

 

35B410A0-C86F-49AF-921E-8CD0AE9A47DC.jpeg

Could you please post a pic looking down the side? I get a lot of grief in my state trying to get an inspection if they stick out pretty much at all.

Zeker Enthusiast

Zeker

Posted
Posted
3 minutes ago, Jmccracken1214 said:

They don’t really.

C23BB27B-8501-476E-9F5B-22C37127834B.jpeg

Nice! Thank you very much

RadoPhan Enthusiast

RadoPhan

Posted
Posted

FYI if you’re running stock rims, the tires get really close to the UCAs. I have 295/70/18 on mine and here’s the clearance on it. Maybe 1/2” the most. I would bet that any wider would touch the UCA. b0969f0e5169e798eebea5d36f2b9929.jpg
472e32be63bf23b296b7dc7180719186.jpg


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