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Tire and Rim upgrade

DaBomb6988

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DaBomb6988 Enthusiast

DaBomb6988

Posted
Posted

I have a 17' Silverado 2500HD Double Cab with the 17" stock wheels and 245/75 tires.  I am going to be buying new wheels and tires.  I also have a V-Plow.  What is the biggest tire I can get without rubbing with the plow on?  I don't know if I want to mess with the torsion bars much as it rides kinda stiff now.  Will cranking them up about an 1'' make the ride any worse?  I have the plow prep package.   I am torn between 275/70R18 and 285/70R18 ridge grapplers.  I want to stick with 18's so I have a little give in the tires.  I've read probably ever tire thread on here lol.   I'm really leaning toward the 275's but wanted to post to get some other input before I make a purchase.  Pics of the 275/70's would be great!   Thanks!

Landkrshr17 Enthusiast

Landkrshr17

Posted
Posted

285/75r18 Duratrac on stock 18" wheels, stock front, lowered rear shackles, absolutely no rubbing. I would think with the plow a little crank in the front should suffice.

20180322_075758.jpg

aseibel Senior Enthusiast

aseibel

Posted
Posted

I recommend installing Timbrens if you want to prevent front end sag with the plow. They reduce sag by about half on mine. I'm a fan. Even if I drive with the plow and no ballast, my truck is not nose diving. Granted, I'm running a half ton plow on a 1500, but I would think you would see similar results with your setup.

 

http://timbren.com/blog/products-page/gmfk25d/

DaBomb6988 Enthusiast

DaBomb6988

Posted
  • Author
Posted

I’ve ran timbrens in my previous GM plow trucks. But the 2011+ don’t need them IMO. Both trucks I’ve had the truck only squats an inch when my v plow is raised. These trucks are much heavier duty than previous models.


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aseibel Senior Enthusiast

aseibel

Posted
Posted

I agree. Mine squatted 1" before timbrens, now only 1/2".

Just thought if you were worried about tire clearance, it may make a difference.

DaBomb6988 Enthusiast

DaBomb6988

Posted
  • Author
Posted

Oh gotcha.   I just worry about it riding “rougher” with timbrens.  Not that it has a bad ride now I just wouldn’t want it any firmer. 

sdeeter19555 Senior Enthusiast

sdeeter19555

Posted
Posted

I had Timbrems in the front of my 2500hd, it rode like a buckboard...they got pulled out in less than 150 miles (for stockers) and are still sitting on the shelf four years later...

2012 2500hd 6.0l CCSB 4wd



Big Whiskey Senior Enthusiast

Big Whiskey

Posted
Posted

Are you buying a set of factory 18" wheels or aftermarket? The width and offset of your rims will make a difference in the largest tire you can run. 

Big Whiskey Senior Enthusiast

Big Whiskey

Posted
Posted
On 3/31/2018 at 8:52 PM, DaBomb6988 said:

I was looking at aftermarket wheels an +18 offset. 

Roger that. 275/70/18 should fit without any trouble at all on a stock height truck, regardless of the brand/tread you choose. There's also a lot of options in that size, and many of them are fairly cheap (relatively speaking). If you're willing to raise the front end a bit, then 285/70/18 should fit. I was able to run my 285/75/17 (same size as the 285/70/18) on my factory wheels at stock height, and didn't rub. They might have rubbed with a plow on the front though. Hard to say. When I changed to my +18mm rims, I also raised the front end 1.5". My tires don't rub at all, but I think they would if I hadn't raised the front when I swapped the rims. 

DaBomb6988 Enthusiast

DaBomb6988

Posted
  • Author
Posted

Yeah I decided on the 275/70's  I'm going to buy lowering shackles for the rear.   I loaded my wheeler in the back for the first time since buying this truck.  And the ramps are pretty steep with the truck stock.  I think after adding taller tires it will be to steep. 

redwngr Senior Enthusiast

redwngr

Posted
Posted
On 3/28/2018 at 7:42 PM, DaBomb6988 said:

I have a 17' Silverado 2500HD Double Cab with the 17" stock wheels and 245/75 tires.  I am going to be buying new wheels and tires.  I also have a V-Plow.  What is the biggest tire I can get without rubbing with the plow on?  I don't know if I want to mess with the torsion bars much as it rides kinda stiff now.  Will cranking them up about an 1'' make the ride any worse?  I have the plow prep package.   I am torn between 275/70R18 and 285/70R18 ridge grapplers.  I want to stick with 18's so I have a little give in the tires.  I've read probably ever tire thread on here lol.   I'm really leaning toward the 275's but wanted to post to get some other input before I make a purchase.  Pics of the 275/70's would be great!   Thanks!

 

One of the reasons GM uses torsion bars is so owners can compensate for the weight of the plow adjust ride height.

 

https://www.gmupfitter.com/files/media/photo/878/2018_LD_Snow_Plow_01_22-18.pdf

 

 

  • 2 weeks later...
Skeld Enthusiast

Skeld

Posted
Posted
On 4/8/2018 at 6:43 PM, redwngr said:

 

One of the reasons GM uses torsion bars is so owners can compensate for the weight of the plow adjust ride height.

 

https://www.gmupfitter.com/files/media/photo/878/2018_LD_Snow_Plow_01_22-18.pdf

 

 

 

Interesting.  I was under the impression the front end of the 2500 and 3500 is the same, but this would lead me to believe I could carry 250 more pounds of plow with my CC 6.0 if I had bought a 3500 instead of a 2500.  Wonder why?

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