Biggest Tires and Wheel Offset on stock truck?

[Duramax85]

I just bought a 2021 Silverado 2500 Duramax 4x4. 
What is the max offset of an aftermarket wheel you can put on these trucks stock without it rubbing? I’d believe stock offset is +44 or something like that. 
 

Also what is the largest tire you can go on the stock truck? 
 

Thank you. 

[RugbyRef]

Correct on your offset for the stock 18x8 wheels...+44.  Although I can't answer your question specifically (because I too just bought a 2021), I have used this site to help me figure out what will fit - https://www.wheel-size.com/calc/.

 

Hope this helps!

 

 

Edited March 19, 2021 by RugbyRef

[Duramax85]

10 hours ago, RugbyRef said:

Correct on your offset for the stock 18x8 wheels...+44.  Although I can't answer your question specifically (because I too just bought a 2021), I have used this site to help me figure out what will fit - https://www.wheel-size.com/calc/.

 

Hope this helps!

 

 

According to that link it looks good to go. I went with a +0 offset 18x9 with the stock tire size of 275/70r18. 
 

Anyone have any other insight on this and if 18x9 +0 offset with 275/70r18 will rub? Thank you. 

Edited March 20, 2021 by Duramax85

[Duramax85]

Fits just right. No rubbing at all. 

[Brozat4]

2 hours ago, Duramax85 said:

Fits just right. No rubbing at all. 

Do you have any pics showing how flush or how much poke the 0 offset with stock tires is? I'd love to know thank you.

[Duramax85]

[Brozat4]

1 minute ago, Duramax85 said:

Awesome thanks you, looks perfect. And that is stock ride height with no rubbing or trimming at all?

[Duramax85]

Correct. Stock ride height. No rubbing full lock both ways and I didn’t do any trimming. 

[BigKahuna]

I just mounted 295/65-20 Toyo AT3’s on 20x9 0 offset BMF REPR’s, stock suspension height. I had to tie the front inner fender liners forwards, and still have some pretty serious rubbing at the back on my stainless mudflaps. Not sure what to do about them. They’re so thin that even if I remove them I will have rubbing on the hard plastic that they are mounted to. I didn’t want to have to either do a levelling kit or find some wheels that I actually like that have a positive offset.

Edited April 12, 2021 by Camstyn

[L8T]

18 hours ago, Camstyn said:

I just mounted 295/65-20 Toyo AT3’s on 20x9 0 offset BMF REPR’s, stock suspension height. I had to tie the front inner fender liners forwards, and still have some pretty serious rubbing at the back on my stainless mudflaps. Not sure what to do about them. They’re so thin that even if I remove them I will have rubbing on the hard plastic that they are mounted to. I didn’t want to have to either do a levelling kit or find some wheels that I actually like that have a positive offset.

I’m going to try and squeeze 295/60r20 on 20x10 -18 on my truck Wednesday. Hopefully I don’t need to do too much as I have aftermarket flaps too. I figure a 1” key bump for now and a bit of trimming might do it. 
 

I saw a buddies truck the other day that has 305/60r20 on 22x12 -44 and he had to split the factory flap in half and a 1” key bump to make it fit. 

[Austinamp]

I was able to fit 325/60/20 on stock wheels. 

 

[Basketcase]

I'm running 18x9 +18 with 35x12.5x18 K02s. stock suspension and no rubbing. 

[CRApex]

295/65/20 +18's on mine.  Had to tie back the front of the liners and now no rubbing, stock height.

[Supercup]

7 hours ago, Basketcase said:

I'm running 18x9 +18 with 35x12.5x18 K02s. stock suspension and no rubbing. 

 

Did you have to run spacers with those wheels or worked ok with +18 with no spacers? 

[Basketcase]

 

1 hour ago, Supercup said:

 

Did you have to run spacers with those wheels or worked ok with +18 with no spacers? 

 

bolt on the wheels and go