Originally Posted by Firefighter78
I had the same problem with my 334, several problems could cause this. You need to be careful how you load the TT, heaviest weight needs to be over the axles, especially if you have a rear bunkhouse, lots of places to store weight in those areas in the back, throws off the weight balance on the hitch. Also are you towing with fresh tank full? The water sloshing around in those tanks will make the trailer sway. I towed mine about five miles on interstate and had to dump the tank, couldn't keep the trailer in one lane. Last thing is if you have Tow max tires, better consider getting them off. Sidewalls are too weak for these heavier trailers regardless of what the rating says on the tire, they are junk and unsafe. If you have the Reese torsion hitch, shouldn't need the friction sway bar. They create other problems so would check the loading, tires, water tanks first then go from there.
Like he said '... check the loading, tires, water tanks first then go from there.'
I would add getting your rig weighed to be sure you have about 13% of the loaded trailer weight on the tongue, that loaded the trailer is LEVEL or slightly nose DOWN, that your TV has correct load range tires, and that your TT and TV tires are inflated to the maximum it says on the tire sidewall.
Lots of folks on this site use sway control. I would guess that many of them use it with a Reese hitch.
There are differing opinions regarding tires on this site. I don't have enough experience to suggest one brand over another, but UNDER INFLATION is a common problem leading to handling problems and tire failures.