[Fitter32]

285/65/20 Nitto Terra Grappler G2.. Not cranked, stock.. I have super springs and bags in the back so rear is up a little.

No rubbing at all lock to lock

https://imgur.com/5athSY2

 

[Fitter32]

See if I can figure out how to post a pic

 

[drlake00]

does any one know what is the biggest size tire i can put on my stock 18" rims on a 2017 chevy 2500 ltz diesel midnight edition

 

[D.Camilleri]

does any one know what is the biggest size tire i can put on my stock 18" rims on a 2017 chevy 2500 ltz diesel midnight edition

You can probably safely run 275/70R18 or 285/65R18, 295/70R18 might fit with torsion bars cranked, but if you want to try, mount a front one and check it for fit. They wouldn't fit on my 2017 3500 with after market wheels due to the difference in offset.

 

[Falkenburg]

You can probably safely run 275/70R18 or 285/65R18, 295/70R18 might fit with torsion bars cranked, but if you want to try, mount a front one and check it for fit. They wouldn't fit on my 2017 3500 with after market wheels due to the difference in offset.

What was the difference in offset and what problems did you encounter?

I’m trying to figure out a larger tire for my 2018 2500. Working with a 20x9 +20... OEM is +44.

 

[bryan452]

Wow that 285/65r20 shows to be almost 2 " taller tire and .8" wider...with no rub... that would be the tire!

 

[D.Camilleri]

What was the difference in offset and what problems did you encounter?

I’m trying to figure out a larger tire for my 2018 2500. Working with a 20x9 +20... OEM is +44.

I went with a 18x9 +12 and it gained me 1 1/2 inches of clearance from my upper control arm ball joint location to make running tire chains safer. With the tire offset to the outside more, it is easier to make contact with the outside of the rear part of the fender. I can fit 275/70 or 285/6518 and they don't rub, still kind of tight for chains at full crank though.

 

[Chevyworkhorse]

Had my GMC 3500HD all Terrain for 3 months now. Stock wheels 18's, tires need replacing, currently have 265/70/18 Michelin on them.



I want to up side tires, keep stock wheels if possible (unless there is any gain on changing). I plan to use truck primary for pulling my race car trailer 30ft (race mk1 custom rabbit), so need tires for that usage. I am thinking going 285/65/R18, not sure what type of tires though.



Any help on size and brand of tires would be appreciated. thanks Simon.

 

[D.Camilleri]

Had my GMC 3500HD all Terrain for 3 months now. Stock wheels 18's, tires need replacing, currently have 265/70/18 Michelin on them.



I want to up side tires, keep stock wheels if possible (unless there is any gain on changing). I plan to use truck primary for pulling my race car trailer 30ft (race mk1 custom rabbit), so need tires for that usage. I am thinking going 285/65/R18, not sure what type of tires though.



Any help on size and brand of tires would be appreciated. thanks Simon.

Either 285/65R18 or 275/70R18 would be a good choice, speedo should be right on. As for brand, if highway and towing is primary, I would stick with Michelin all season. If you want more traction, I am very fond of the new Dick Cepek Trail Country EXP. mine are wearing very well and they have good traction and not too loud.

 

[Chevyworkhorse]

Either 285/65R18 or 275/70R18 would be a good choice, speedo should be right on. As for brand, if highway and towing is primary, I would stick with Michelin all season. If you want more traction, I am very fond of the new Dick Cepek Trail Country EXP. mine are wearing very well and they have good traction and not too loud.

Thank you for quick reply. I see those sizes brings me in at



285/65R18 = 32.5"

275/70R18 = 33.16"


Doing some research these sizes seem to be within the band of not rubbing or cutting of front bumpers, mud flaps, etc. Awesome.


thanks







more traction seems always a good idea!



thanks Simon.

 

[Rings1973]

Hi all! I know this thread has been out here for awhile. I just put 275/65/20 on my stock 2018 2500hd LTZ. no modifications at all, no rubs, etc.

 

[Normando]

Only by people with altered trucks. Everyone had an opinion but never proved 285/60/20 would actually fit on a STOCK truck...or provided pics confirming this. That's the problem..opinions from people with altered trucks..no pics and facts. The original question was how big on a stock HD? A recent poster just confirmed 275/65/20 fits, but will a 285/60/20 fit = a bigger tire again? And even more recently and specifically the BFG KO2? As it sits this forum is still waiting +80 posts later for an actual answer on the BFG 285. At least no one started an entirely new post and utilized the current threads to be efficient and keep data consolidated.

Here it is Thomas 285-60-20....ok maybe I cranked the torsion bars 3-4 turns by 40k later + no rub no issue.

 

[snake243]

Good looking r

Hi all! I know this thread has been out here for awhile. I just put 275/65/20 on my stock 2018 2500hd LTZ. no modifications at all, no rubs, etc. View attachment 635283 View attachment 635284 View attachment 635283 View attachment 635284

Good looking rig! I just ordered 275/65R20 KO2s...was really going back and forth with the 285/65s.

 

[autogeek]

The sun creates a cool effect on your wheels.

 

[Nordic]

Has anyone tried Cooper's Discoverer AT3 XLT yet ? Pictures ? I'm tempted to try them...

I run these tires on my work truck. I live up north in Buffalo and tow my sleds up to the Adirondacks all the time so i needed good long lasting tires. Could not get three winters out of Nitto or Goodyears so i put cooper AT3 XLT's on heading into my 4th winter and have no concerns about the tread depth (ran all three brands on same truck,2012) I have 40,000 miles on them. When my daily driver 2500hd Denali gets new tires in the spring these will be going on. I'm an old man that has been building show cars and trucks for almost 40 years. They are good tires.