Cliff85

I posted a similar thread in another forum but figured I would try here too. I have a 2012 f150 stx with the 5.0l. It has standard equipment for that trim plus the integrated brake control and tow package. The only thing aftermarket on the truck is a set of rear timbrens bump stops. I towed a 3k lb equipment trailer with a compact tractor weighing approximately 2500 lbs and was getting a little trailer sway at speeds above 50 mph. The sway was not to severe but enough to you could feel it. I was not using a WHD and had plenty of tongue weight. I had a similar experience towing a 16ft aluminum enclosed trailer empty and loaded. Again had plenty of tongue weight and noticeable trailer sway. But I have towed a 5k dump trailer empty and experienced no trailer sway. Does anyone one have any ideas what is causing this or advice to prevent it? Should I look into installing a sway bar like one from hellwig?

meathooker

Wha tires do you have?

Cliff85

I currently have Goodyear wranglers. Size p265/70/18. My tire pressure was at 35 psi front and rear.

77Ranger460

I tow a 6k TT with P metric tires. I run the rear at max PSI and the front close to max. I have XL rated tires. Max is 50 PSI.

massspike

I'd start with the tires. Put more air in them. When I tow I have the rears of basically the same tires at 40psi (or more).

Is the trailer level?

I understand (from their web site) that the Helwigs are to prevent body roll if you had a camper in the bed.

Cliff85

I will try adding some air pressure to the rear tires next time I tow. The tongue of the trailers was slightly down From level whIle towing.

meathooker

In my experience the stock P tires are too flimsy and the sidewall flex exacerbates sway. If the higher pressures don't help I'd bet a set of LT's would.

It's only a matter of time before the wranglers leave you stranded alongside the road anyways so might as well replace them now haha

Cliff85

Is the an LT tire that you would recommend that is still an all terrain tire?

77Ranger460

BFG Radial AT

mass-hole

Wrangler Duratracs are great but you may need to change sizes to get an LT, not positive.