Maximum legal weight for 40ft 48'' spread axle?

I got the 22,500 off the Big Tex website.

That's your number or your tag, the lessor of the two.

http://bigtextrailers.com/pdf/22gn.pdf

 

A 7000lb trailer to carry 6000lbs.... well you shouldn't break anything!!
I built a 2200lb trailer limited to two 3500lb axles and found I was too "trailer" heavy most of the time.
If I were you I'd be thinking about a 3rd axle and putting a newer truck in front with one of those "we're the best" towing capacities.

 

I think you could add the gvwr of your truck( on your cab door) to the gvwr of your trailer(on the trailer stats plate) and that would be what you are looking for.

Sounds like your tractor is rated about 15000 pounds and If the gvwr of your trailer is 15000 pounds, you could scale a total of 30000 pounds.

But---take it to a dot scale house and they will tell you, or call them.

I have an f-450 pickup with a gvwr of 15000 pounds .My dump trailer has a gvwr of 14000 pounds , but I am only tagged for a maximum of 26000 pounds.

I think dot would say my total that I can run the road with is 29000 pounds. and thats about all i can carry anyhow.

I have had 16000 pounds of rock on my trailer and the truck weighs 10200 pounds, so I have had a total of 26200 on my rig.

I don't know what you haul or where you haul it but I would like to know.I am getting ready to put my rig on the hi-way but I don't know who to attempt to haul for.I dont want to,lease to any one company and that may be impossible , maybe ???

 

If you're only tagged for 26,000, the DOT will most likely tell you that you are only legal to 26,000 pounds. If you want to haul more legally, you'll have to pay to register your truck & trailer for the full manufacturer's GCWR.

 

Btt

Yea, it's really insane. I'm looking to use my dually too. I'm going to be limited to 7500# due to the weight of the trailer

I wonder how many loads I could get if I went to a 30' trailer. At least I would be about to haul 10000#.