We have a Lance 881 on a 2006 Chevy 2500 HD 4x4 cc sb srw with airbags. We've never weighted the unit before , note that we've been hauling this combo since 06 with no complaints from the truck . After all the talk of toooo much weight on the trucks , on this forum, we took the time to weight our unit. We're over the expected weight by a LOT......but we're rolling along none the less . At present we have 184000 miles on the truck . I thought that the brakes would be worn but my dismay they still had half of their pad still intact. Maybe you guys who are having problems with weight factors should just go out an purchase a REAL TRUCK for a change .