35” tires on stock trail boss with stock wheels

Ztb2020 · Dec 29, 2021

Hello,

I have a 2020 trail boss with factory wheels and tires. Does anyone know if a set of 35x12.50R18 will fit and not rub without additional modifications? I was thinking of Yokohama geolander AT because the are less aggressive than factory tires and I do a lot of highway driving.
Any advice will help.
thank you

Patrick's Chevy Garage · Dec 29, 2021

Are you still at stock height? If so, they will rub without some modification to the fender liners/mud flaps.

I'm ran 295/70/18 on stock wheels at stock height. I had minor contact. I would say that is as big as you can go bone stock.

Ztb2020 · Dec 29, 2021

Patrick's Chevy Garage said:
Are you still at stock height? If so, they will rub without some modification to the fender liners/mud flaps.

I'm ran 295/70/18 on stock wheels at stock height. I had minor contact. I would say that is as big as you can go bone stock.

Hello
I am still at stock height. How much trimming would be required you think?
Thank you

Patrick's Chevy Garage · Dec 29, 2021

Ztb2020 said:
Hello
I am still at stock height. How much trimming would be required you think?
Thank you have

Ztb2020 said:
Hello
I am still at stock height. How much trimming would be required you think?
Thank you

I would recommend watching this video:

Patrick's Chevy Garage · Dec 29, 2021

Staying with stock wheels will make a huge difference. The truck in the video is lifted. But I'd expect you'd have to do something similar on stock wheels without a lift to fit 35s.

Jmzvet · Dec 30, 2021

I have a 2in ReadyLift level kit with 295/70s on stock 18in wheels. I did not rub at all until I added 1.5in wheel spacers.
I removed the fender liner brackets and modified the mudflaps. Zero rubbing

HammerBoss · Feb 5, 2022

I have 35 x 11.5" on stock 20" wheels no lift no rub. 12.5" wide will require lift for sure.

Blueicebob · Feb 5, 2022

HammerBoss said:
I have 35 x 11.5" on stock 20" wheels no lift no rub. 12.5" wide will require lift for sure.

I wouldn’t have guessed u could fit 35” in there. Mine r 18” but that doesn’t matter. Thanks for the info

TexasSAR · Feb 5, 2022

I tried 295/65/20 with 1.75 ReadyLift and no spacers and they rubbed. Dropped to 285/65/20 and have no rub.

Jmzvet · Feb 5, 2022

The mudflap / bracket/ liner mod is easy and barely noticeable. Frees up a lot of room

BAJ086 · Feb 6, 2022

HammerBoss said:
I have 35 x 11.5" on stock 20" wheels no lift no rub. 12.5" wide will require lift for sure.

What kind of tires are they? Pictures look awesome.

HammerBoss · Feb 7, 2022

BAJ086 said:
What kind of tires are they? Pictures look awesome.

Nitto Ridge Grapplers

HammerBoss · Mar 30, 2022

Added the Readylift 2" without the blocks in the back. Picture looks negative rake but it's the driveway. It's dead on level. Also added 1.2" spacers. Big improvement.

2KWIK2C · Apr 14, 2022

I had a little rubbing with my 35's on 18's. A lot of babysitting off road and said f@(k it and put in the 6" lift. No issues! My two cents1

HammerBoss · Apr 14, 2022

That was a smart move! Once my $2000 tires! wear out I am going to do the same thing. I never have really been comfortable with changing the geometry of the suspension with spacers. I did it and it seems fine but common sense tells me it's not the right way to lift the truck. I am going to have the suspension built then add 37 x 17s.