Tires 5 and 6 aren't really for load, they are for stability. You can get tires with higher load ratings, but you don't get 8 sidewalls to stabilize the load. (don't take my word for it, this is from the 2005 ford source book).

But it's true. It's not just the tires. The brakes, dana 70/80/110 axle, wheels, tires all play a part in the higher GVWR for a 350 DRW vs a 250/350. The truck gets a little heavier but it's (legal) capacity goes up by a lot.

 

you will be fine. it is built ford tough, after all

 

are you saying a DRW and SRW 1 ton have different rear axles?
I thought they just had more leaf springs in the DRW and heaver brakes?

 

well the truck in my sig. weights 6460 gvw 8800 = 2340 payload

 

That's the difference the gas motor and shorter bed can make. Is that your truck weight, completely empty?

 

Absolutely! I couldn't remember which dana rear axle it was, I think it's an 80.

 

yup full tank of gas

 

I have put 7000 pounds of concrete in the back of my SRW 1 ton.
how bad a thing to do is that? ( I assumed it had the DRW axle)

 

The only real difference between a 250 and 350 (depending on year) is the rear blocks and the label on the door. 7000 lbs is far beyond what I would ever put in it. I would think it could break the springs, severely bottom out, bend something, over work the brakes etc at that load.

 

hi there, i have an 04 f250 xl 5.4 4x4 is the main difference between this and a 350 only the blocks?

 

I do it all the time. yes it does bottem out a lot, and I do brake jobs a lot, but the frame and every thing else seems to take it well.
what is the back axles limit ?
do the SRW and the DRW have the same frame?
With that much weight, i am still 1" off the bump stops.

 

I call BS on hauling 7000lbs in a regular P/U box you physically run out of space.

I love how people make up stories. Unless its scale verified somebody has brown teeth from spewing BS.

Putting 4000lbs into a regular srw P/U is fine especailly its a low center of gravity load. If it was a big camper that weighed 4000lbs that is a different story.

Oh ya putting air bags on a truck doesn't make it better it makes it worse because now you have more stress on frame. It also gives you a false sense of handling. You start over driving with the load a bag blows or something lets go you loose control.

 

The GVWR of my '08 F250 is 10,000 lbs. Not sure when that changed, but I have a payload of around 2,000 lbs.

 

I routinely haul 300 gal (2400 lbs) of water in my 3/4 for my horses and have no problems. That is up and down hill and dale for 30 miles one way, up to three miles in a day.

 

One pallet of concrete mix is 57, sixty pound bags. Two pallets easily fit in the bed of my truck.

Moist dirt is represented as weighing 3,000 pounds per cubic yard. I routinely carry two cubic yards, sometimes a little more.

God only knows what a bed full of gravel would weigh....!