Tow vehicle too short of wheelbase???

hookset wrote:
Recently downsized from 39' 5th wheel & one ton diesel dually to a 30' (box-34' inc hitch)trailer and a 2017 Chevy Silverado Tahoe suv. On tow home from dealership & 1st camping trip (100 miles total) I experienced a considerable amount of sway even with a WD hitch and 1 sway bar. Many years ago we started camping with a 30' trailer pulled by a Chevy Blazer - don't remember having this problem. Is it ---

1. Tahoe has too short of a wheelbase (116 inches)
2. Need 2nd sway bar
3. WD hitch not installed correctly
All the above or ????

Could be all of the above. Having towed with vehicles with wheelbases ranging from 111" to 143" I'd agree that 116" is just too short for towing a trailer measuring 34' coupler to bumper. To solve this I'd first load the trailer as it typically would be for camping and check that the weight distribution is correctly set up. Assuming it is and you still have sway the next solution is to add a second sway bar. If that still doesn't do it then a WD system like the Hensley Arrow or Propride 3P may be your only option and although expensive either would certainly be a lot less costly than replacing your Tahoe with a much longer wheelbase vehicle. BTW, never heard of a "Silverado Tahoe", has to be one or the other, so I assume you mean you have a Tahoe SUV considering the wheelbase is so short. ;)