I have one similar to the first one but the winch is on top. The arm is colaspsable but I never bother, I just snug the cable up to an attachment point. The cable goes up and over a pulley on the end of the arm. The arm is also adjustable three positions. 2,000 lbs, 1,500 lbs, 800 lbs all the way out. I am in the process of fabricating an adjustable leg for the rear bumper of my truck. I have hung a full dressed 454 of it no problems.