Bigger tires? Where do they make a difference

Huntindog wrote:

timmac wrote:

azdryheat wrote:
You don't have the authority to change the GVWR or GAWR.

I do

That's great! Ihad no idea it would be so easy. Can you print me a new sticker for my truck?:R

This internet stuff just keeps getting better. More things that were previously hard or impossible to get are becoming easy every day.:B

Depending upon the state you live in, they may not recognize the door sticker as being the law per say. Only what you pay in fees to drive down the road. So in a sense, yes it is easy to change out the gvwr of a given rig by paying money to your local licensing agent. I've had 8600 gvwr rigs licensed to 12K, an 18200 licensed at 26K, been pulled over at 27k, no overweight ticket mind you. Just told to up license to 28K with in 10 days. As I was under the road bed design limit. Ie 20K per axel, or 500 lbs per inch width of tire, which ever is less. Also assuming your axel are spread apart enough to "BRIDGE" the load over the road bed enough. Hence "Federal Bridge Laws" from a weigh load issue.
With this in mind.....AN LEO CAN and WILL get you off the road if you have an unsafe rig. For the OP, this will not be enough to worry about.
Taller tires as noted WILL lower you initial take off ability. Going from a 31" diam tire and say 4.10's to a 32" diam tire, will now net you an approx 3.95 axel ratio. Go up 2" you are now a 3.73 effictive ratio.
GCWR is a performance standard, look at the new SAE ratings, it is not a law that you can not go over this ratings. Nor is the gvwr that the manufacture lists a law. I have yet to see this stated in ANY states I have looked up. Including here in Washington state where I am. All that matters is the paid for slip of paper in my truck. If I am over this amount....techniquely I am over weight. Even if at say 8200 lbs on my 2000 C2500 which has a door sticker of 8600 lbs, but over my paid for license of 8000 lbs. Or it can go the other way as noted above re in my dumptruck one day.

marty