I have a Chevy Silverado, 3500 diesel dually, long bed, crew cab. It absolutely cannot be towed or towed with a dolly without disconnecting the drive shaft. AND that is a really hard job. The book says, absolutely do not tow, if towing is necessary, disconnect the drive shaft or get a flat bed tow truck or trailer.
You did not say what kind of Silverado, 1500, 2500, 3500, 2 wheel drive, 4 wheel drive, gas or diesel?
But, if the book says "don't do this." then don't do it!
2019 Montana High Country 375FL Fifth Wheel
2014 Chevy Silverado 3500 6.6L HD Dually, Long Bed, Crew Cab