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Wheel load ratings on stock 2500HD wheels?

wesmadden

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wesmadden Enthusiast

wesmadden

Posted
Posted

Does anyone know the wheel load ratings on the forged aluminum wheels that come on the 2500HDs? I'm looking to upgrade those stocker 245s, but can't decide on whether to stick with the stock wheels or upgrade them as well.

 

Thanks

Haulin' 8.1 Enthusiast

Haulin' 8.1

Posted
Posted

Keep in mind that if you do find some published load ratings from GM they will be for those wheels on the stock size tires. Larger tires will reduce the rating.

 

Vernon

wesmadden Enthusiast

wesmadden

Posted
  • Author
Posted
Keep in mind that if you do find some published load ratings from GM they will be for those wheels on the stock size tires.  Larger tires will reduce the rating.

 

Vernon

 

 

 

 

Larger tires may increase the rating as well. If a 245 load E tire is rated at 3000lbs. and a 265 load E is rated at 3400, wouldn't the 265s be a step towards increasing your GVWT rating? Since i'm planning to haul a truck camper that puts me right at the stock payload capacity of the pickup, upgrading the weakest link (tires) would be a logical step towards increasing the payload capacity. Tires would be followed by airbags and possibly a rear anti-sway bar to stabilize the load. The only info I can't find is the load rating for the stocker wheels. Good aftermarket 16" wheel load ratings can range from 3400-3750lbs and these are said to be an improvement over OEM. I just can't go to duallies in Fairbanks, Alaska. More surface area + more weight distribution+icy roads=crappy traction and bald tires.

Shaners Senior Enthusiast

Shaners

Posted
Posted

If you plan on maxxing out your GVW then be careful about putting larger tires on the stock rims. The stock rims are only 6.5" wide. A 265/75/16 is supposed to be installed on a 7"-8" wide rim according to tire manufacturers.

 

I don't think you'll have any problems running a 265 (I'm running 265's) on your stock rims, but it might not be a bad idea to pick the brain of your local tire guy and explain to him your situation and see what he has to say.

Haulin' 8.1 Enthusiast

Haulin' 8.1

Posted
Posted

My reasoning is that though you could put tires on that have a higher load rateing if you move the point of contact with the ground further away from the hub then you increase the side loading leverage in turning. Longer lever equals greater force. I'm not saying a drastic amount, but it seems like the poster knows he's going to maximum capacity. So every bit would matter.

 

Vernon

Trouttrooper Enthusiast

Trouttrooper

Posted
Posted

The 3500 SRW comes stock with 265/75. They are essentially using the same rim as 2500HD. I don't think you'll have to worry about overloading the rims.

 

That must be a pretty big camper if it's getting you close to payload capacity.

jake111 Enthusiast

jake111

Posted
Posted

Just checked the door sticker on my 2004.5 3500 SRW. 4 rims are 7" and the spare is 6.5. All the tires are 265/75-16E. I can only guess that the 7" doesn't fit as a spare? Maybe if I ever get around to dropping the spare (seems like a good thing to practise before you actually need it), I'll see why.

Trouttrooper Enthusiast

Trouttrooper

Posted
Posted
Just checked the door sticker on my 2004.5 3500 SRW.  4 rims are 7" and the spare is 6.5.  All the tires are 265/75-16E.  I can only guess that the 7" doesn't fit as a spare?  Maybe if I ever get around to dropping the spare (seems like a good thing to practise before you actually need it), I'll see why.

 

 

 

 

Guess that's what I get for assuming. Had to go out and check my truck out. Learn something new every day. :D

 

I bet the bigger rim/tire combo doesn't fit underneath as a spare, there's barely enough room as it is.

wesmadden Enthusiast

wesmadden

Posted
  • Author
Posted
The 3500 SRW comes stock with 265/75.  They are essentially using the same rim as 2500HD.  I don't think you'll have to worry about overloading the rims.

 

That must be a pretty big camper if it's getting you close to payload capacity.

 

 

 

 

The payload capacity for the 2500HD CCSB is listed at a hair over 3400#, but if you open the glove box, there is a sticker that says a truck camper is not to exceed 1727#. Why this is in there, I have no idea, lawsuits maybe. In the camper world, 1727# doesn't get you much. I'm just trying to identify the weak links, i.e. tires and wheels, to be safe and legal.

Trouttrooper Enthusiast

Trouttrooper

Posted
Posted
The payload capacity for the 2500HD CCSB is listed at a hair over 3400#, but if you open the glove box, there is a sticker that says a truck camper is not to exceed 1727#.  Why this is in there, I have no idea, lawsuits maybe.  In the camper world, 1727# doesn't get you much.  I'm just trying to identify the weak links, i.e. tires and wheels, to be safe and legal.

 

 

 

 

 

That's weird . I've never looked in my glove box at the stickers, I'll have to do it tommorrow and see what it says.

 

I've had cabover campers pretty much my whole life. My dad setup was a '84 Chevy 1 ton CC LB SRW with a 8' cabover with a 5 place horse trailer. We never exceeded the load ratings of the truck tires, although it was close. They were 235/85 16 on 6.5" wide rims.

 

The biggest issue is side to side sway. The extra leaf springs the 3500's get help a bunch with that. It's also possible that with your's being a short bed there's a load balance issue with too much behind the rear axle, I don't know.

 

I had a '84 chevy K20 that I hauled my camper around for years and never had a problem. Just was real unnearving in a strong crosswind.

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