Structual damage motorhome frame work

[Motorhome831]

We have a 2004 Monaco Sahara Safari 40ft PDQ 3 slide 55k miles.
Metal framing callapsing ( 1 inch square steel tube) down towards chassis and pulling apart below chassis apox. 2 inches. The failure is in 7 places forward and rear of rear Axel. Weighed motorhome 10,500 front 18,500 rear, also
had broken drivers side swing arm that causes us to replace both arms
with heavy dutie version. Has this problem happen to others?

[RV Wizard]

We are glad to have you join us here and we look forward to reading of your adventures and experiences. I am sure you will enjoy the website and forums. Good luck and keep us posted.
If you do not get an answer here you could ask in or Monaco Owners Forum.

[Drifter]

Motorhome831, Welcome to the Monaco Owners Forum. Many of the coaches with the four bag setup have had the rear arms inspected and changed with update parts, you can do a search in the Roadmaster section for much more info. You'll find that the trailing arm from the factory are all bad and the company has gone out of business.

[Rex]

Go here and real all about it, and the solution as well. Two companies now have replacement parts, Source Engineering (first to developed them), and the new Monaco LLC which has now developed replacements. There is at least one report on IRV2 about the Monaco arms not working correctly and causing them to rub the air bags till they failed.

Trailing Arms Cracked on Roadmaster