AT4 XL - Largest Tires?

[Toona]

I just picked up a 2021 AT4 Yukon XL. Ive got 275/60/20 stock wranglers on there but want to max it out with an all terrain and dont plan on leveling. I assume its similar to the denali threads with air suspension but I couldnt find one specific to the AT4.. any tried bigger tires on the AT4 yet?

 

[lasallen]

I just picked up a 2021 AT4 Yukon XL. Ive got 275/60/20 stock wranglers on there but want to max it out with an all terrain and dont plan on leveling. I assume its similar to the denali threads with air suspension but I couldnt find one specific to the AT4.. any tried bigger tires on the AT4 yet?

I will be going to 285/50 22 as per a few on here with Z71's. Does your AT4 have air ride suspension??

 

[Toona]

Thanks. Yes I have air suspension. Trying to figure how big i can go with air suspension

 

[Goldenbear03]

Interested in what you learn here. I'd like to do the same on my AT4 with air ride.

 

[debo4x4]

I did 285/50/22 Toyo AT3's on my Denali. No trimming needed, but I did remove a bracket behind the fender liner in order to pull it back just a bit and zip tied it off. That gave enough room that there's no chance of rubbing on the inner liner. You wouldn't even notice it unless you crawl under and look. So far so good.

 

[lasallen]

Interested in what you learn here. I'd like to do the same on my AT4 with air ride.

I am going to 22” wheels with 285 50 22 ridge grapplers on my at4

 

[DWSmoot]

/\ this

 

[lasallen]

/\ this

View attachment 269987

cleanest 21 I have seen to date. My AT4 XL will have this setup next week

 

[DWSmoot]

Thanks. Looking forward to seeing it!

 

[lasallen]

 

[DWSmoot]

Looks good! Of course I am a little partial haha

Did you level?

 

[lasallen]

Lol!!!! Thanks to your info!!! I did not level, I have air ride. It self levels.

 

[DWSmoot]

Lol!!!! Thanks to your info!!! I did not level, I have air ride. It self levels Thanks to your info!!!!

what’s the max height you can set it at for normal driving?

 

[lasallen]

You can max out at +2 inches but you have to be in 4wd low to get there. You can go plus 1” up to 50 mph. If you exceed 50 mph it drops back to neutral. When I snap these adjustable arms in place of the factory ones I will be able to adjust the neutral setting to any height I want.

 

[DWSmoot]

Interesting, I didn't know those were available. I don’t have the air suspension but trying to find out how I can run a 285/55r22 (1” larger dia) without a huge lift. Still waiting for more level/lift products to come out.

 

[lasallen]

Yeah, I wanted to go a little bigger as well. I played it safe and took your advice on the tire size. I didnt have the luxury of the tire shop having a larger size for me to try first. Next project will be the whipple supercharger. I was upset the at4 was not available with the 6.2

 

[SuperchargedC6]

You can max out at +2 inches but you have to be in 4wd low to get there. You can go plus 1” up to 50 mph. If you exceed 50 mph it drops back to neutral. When I snap these adjustable arms in place of the factory ones I will be able to adjust the neutral setting to any height I want.

View attachment 270715

Where did you get these adjustable arms?

 

[lasallen]

Where did you get these adjustable arms?

https://edgymods.com/

 

[Toona]

Looks great. I am still trying to figure out how big a tire i can squeeze onto 20s

 

[2021z71]

I have the edgymods links and just bought some 35x12.5x20’s. Raised it about 2” with the links and we’ll soon see if the 35’s fit. It’s gonna be close