It's a CYA (Cover Your Behind) by Lippert. If you were to do it and something went totally wrong and the unit came down a crushed you, your family could sue, but by telling to NOT to they're covered.
In the real world we all do it.
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Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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