Did you get an answer from somewhere on your question?
Lot of times more weight means more bolts on the mount, so might/might not be an easy swap.
2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired