I agree with the others about tire pressure, but you stated that it started after being cut off, I was looking at the exact trailer for us and would have towed it with an f150 I'm wondering if your trailer brakes were not set properly as that would have caused the trailer to push the tow vech. all over the road until you let off the brakes and gave just a bit off throttle to pull it out straight. and they comments about your hitch and sway control not being enough is true. i got 1200# bars and dual cams for our north trail 26rlss.
