[Johnnyboy]

I would say it would work enough to at least lift the coach body up to look under for any other good lifting areas. Without seeing, just not enough to lift wheels off the ground. Being tied into the 4” chassis it should be strong enough. I like to use two jacks for extra safety and additional support. Really, just lifting the front and extending the airbags and not lifting the tires, usually gives me enough room to crawl under  and view the underside. Safest of course is to use jack stands and cribbing