Trailboss oversize tires

MBPhotos · November 21, 2020

Ready Lift 2" SST for TB

17x9 Fuel Zephyr

315/70/17 AMP Terrain Pro A/T's.

NO rub at full lock going forward, only a bit of rubbing at full lock in reverse on the mud flap and juuuust a tad on the felt fender liner. Haven't gotten around to playing with spacers or doing any trimming, but I'm sure anyone with just a bit of experience would make light work of getting rid of the rubbing all together.

EricTheRed · November 21, 2020

Stock suspension Trail Boss with 295/70r18 Falken Wildpeak tires and 1.5in BORA wheel spacers. Just the right amount of stance and lift in my opinion. No rubbing at all since I trimmed the front mud flaps and removed the little brackets hidden behind them.

Kickerz71 · January 29, 2021

Hi everyone, I've been looking for a clear answer to help make my decision, input is appreciated.

Purchased the RL leveling kit, havent installed it yet, my goal is to run Ridge Grappler 295/70/18 on my stock wheels.

Can this be done? I dont want to purchase the tires and find out they wont fit the UAC from RL.

Thank you

RadoPhan · January 30, 2021

Hi everyone, I've been looking for a clear answer to help make my decision, input is appreciated.

Purchased the RL leveling kit, havent installed it yet, my goal is to run Ridge Grappler 295/70/18 on my stock wheels.

Can this be done? I dont want to purchase the tires and find out they wont fit the UAC from RL.

Thank you

It won’t fit with the stock rims unless you get spacers. The tires will rub on the RL UCAs. That’s why I had to change my wheels to fit 295/70/18

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Coles5515 · January 31, 2021

7 hours ago, RadoPhan said:

It won’t fit with the stock rims unless you get spacers. The tires will rub on the RL UCAs. That’s why I had to change my wheels to fit 295/70/18

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Curious, what size spacer? I’m running a 1-1/2” but my SST kit goes on in a few week. Looking at either those tires or a 35x11.50 or even a 12.50 if I can clear the UCA with no trimming or maybe the dumb mudflap mod.

RadoPhan · January 31, 2021

Curious, what size spacer? I’m running a 1-1/2” but my SST kit goes on in a few week. Looking at either those tires or a 35x11.50 or even a 12.50 if I can clear the UCA with no trimming or maybe the dumb mudflap mod.

To be sure it fits, RL recommends offset of 0 for rims and that’s what I have but if you want to keep the stock rims, then the offset difference is 26mm so about 1.02 inches wide. If you have a 1.5” wheel spacer now it should work.

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Coles5515 · January 31, 2021

1 hour ago, RadoPhan said:

To be sure it fits, RL recommends offset of 0 for rims and that’s what I have but if you want to keep the stock rims, then the offset difference is 26mm so about 1.02 inches wide. If you have a 1.5” wheel spacer now it should work.

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That’s the math I was using but for some reason I kept doubting it. After it’s installed I’m going to try a set of 1” spacers I have as well and see how it sits and if there’s a rub or not

Kickerz71 · January 31, 2021

To be sure it fits, RL recommends offset of 0 for rims and that’s what I have but if you want to keep the stock rims, then the offset difference is 26mm so about 1.02 inches wide. If you have a 1.5” wheel spacer now it should work.

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What size spacer would you need to run

A 285 75 r18 on stock wheels? Or does tire size not matter is all about the wheel?

Thank you

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RadoPhan · January 31, 2021

What size spacer would you need to run

A 285 75 r18 on stock wheels? Or does tire size not matter is all about the wheel?

Thank you

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According to the calculation, probably close to 0.2” less than the 295/70 tires since it’s .4” wider but take it into consideration that it might be exactly .2” if the wheel isn’t exactly at 0 offset. I would imagine a 1” wheel spacer would clear it with stock rims.

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Kickerz71 · January 31, 2021

Nitto Ridge Grapplers 295/70/18 with 1.5 RC level up front. Speedometer is off 3mph with the larger tires. Ride is similar to stock Wranglers.

Are these more quiet than the duratracks

Coles5515 · February 1, 2021

16 hours ago, Kickerz71 said:

What size spacer would you need to run

A 285 75 r18 on stock wheels? Or does tire size not matter is all about the wheel?

Thank you

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1-1/2” seems to be the best bet with stock wheels.

19gmcsierraat4 · February 3, 2021

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MikeyW · February 6, 2021

This may be a dumb question, but I have seen people say they rub in reverse. Why would you rub in reverse but not going forward?

Jmccracken1214 · February 7, 2021

On 11/21/2020 at 1:05 PM, EricTheRed said:

Stock suspension Trail Boss with 295/70r18 Falken Wildpeak tires and 1.5in BORA wheel spacers. Just the right amount of stance and lift in my opinion. No rubbing at all since I trimmed the front mud flaps and removed the little brackets hidden behind them.

They look good. Any future concern with the wheel spacers wearing out front end components? Wheel bearings?

I've wanted my wheels out like yours, but read spacers arent good?

Also, any problems with rocks hitting your body? My falken wildpeaks sling gravel like crazy

Dalemouse · February 8, 2021

This may be a dumb question, but I have seen people say they rub in reverse. Why would you rub in reverse but not going forward?

I think the reason is that in a forward motion it’s a smooth surface that the tire gradually makes contact with in reverse it’s a straight edged abrupt contact that the tire is grabbing on its first contact with the mud flap.

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