I own a FL80. Wait let me re-phrase that. The finance company owns a FL80 that I lease.
This FL80 has a 35,000 lb gvwr, although with a single axel it can only scale out at 33,000 lbs. per state laws, of the states that I run in. I don't believe there are any states that allow a single axel straight truck to exceed 33,000 lbs.
It also has a raised roof condo sleeper, meaning you can stand up in the cab portion of the truck, without hitting your head, and walk into the sleeper area without bending over or crawling through a hole, unless you are over 7 ft 3" tall. I haven't seen a FL70 with a raised roof condo, however, they may be out there.
The front axel is rated at 12,000 lbs. and the rear (a 4.56) is rated at 23,000 lbs. It does me absolutely no good without a tag axel but It can handle whatever weight the law will allow the shipper to throw at me.
I may stand corrected on any or all of my statements, but only by someone who actually knows more than I do, which in some cases may be just about anyone.
"I'm not much, but I'm all they've got".