Yup, the gross weight on my TT is 7700 lbs. the tires were rated 7080 or so. The tongue weight is expected to handle the remainder.
I ran my China bombs for 15,000 miles, they were four years old when I bought the TT and 7 years old when I replaced them.
On our walk through the dealer and tech went through each item and I made them repeat if I did not understand.
I have heard many horror stories from new owners, so maybe the previous owner of my TT had them fixed. That said, I am now repairing a bed frame that the gas shocks pulled off the wall. So much for older and better.
The RV industry has honed the product lines to the bare minimum that is still acceptable to the buyer.
Keystone recently started construction on two more plants to keep up with their production schedule.
I would not expect any changes in the RV industry any time soon.