Ok no one has answered your question so I will try since i have had two Montanas with frame flex.
Look at the radius area forward of the propane tank compartment. The caulking will be cracked or separated from that edge trim piece. If not hooked up you need to look very closely to see it. If hooked up it will be obvious. My rig has been in the shop three times to fix this and I still have a small amount of flex.
The good thing is most rigs do not have this problem. Also it can be fixed but it is a hassle.
__________________
2012 Big Sky 3400, now an SOB 5th wheel
2007 Montana 3075 previously
2015 GMC 3500 Dually
|