I have a Silverback 31RK(rear kitchen). I'm having things break in the cabinets, even the glass plate in the microwave broke. I ordered a Trailaire pinbox that is on backorder and I'm starting to wond...
It might help a bit but you're not not going to stop the rear of your trailer from bouncing down the road and breaking things. Perhaps why the vast majority of trailers have their kitchens over the wheels.