I've been using this on my 3500 lbs single axle travel trailer for over a year now, and it works awesome. The sway control is a huge help, especially because the single axle trailer would sway a lot while driving. With this system attached, it is so much better, I could not be happier! I keep it lubed up with a few shots of grease here and there, which is easy to do with the lube zerks, and I just use a finger to physically put a little grease on the metal ball detents. It was easy enough to insSee full review