Ladies please…
So many comments on here about having your mechanic/dealer, etc. look at the frame.
Get a screwdriver and crawl under the trailer and LOOK AT THE FRAME YOURSELF. It isn’t rocket science; rust and corrosion are easy to spot. If the coating is peeling or you see potential soft spots, stick the screwdriver into the metal to see how much is corroded. If the coating is cracked, peel it off and look at what is underneath. Pay close attention to the joints.
Alternatively, when your mechanic has it lifted, get under there and look and poke around. Then you can see for yourself.
I bought my used Sundowner from a MAJOR Sundowner dealer which included a “full inspection”. I just happen to stumble onto this frame issue on horsetrailerworld.com about a week after I bought it and sure enough the frame had to be repaired. The dealer was useless with the repair.
Having said that, Sundowner paid for the repair which was made by an RV repair shop close to my home. I worked with Sundowner directly and am very happy with the outcome.
It took some effort as I took pictures of the frame, emailed them to Sundowner, found a repair shop, etc. but in the end it was worth it.
I do love my trailer. 2H gooseneck straight load. I would buy another Sundowner.
You can read horror stories about every brand of trailer but in the end you must use your own common sense and take the initiative to ensure your trailer is safe.
And taking the initiative in my case meant NOT relying on information from the dealer.
PS do not neglect to pack your wheel bearings.