 All common variations of the trucker's hitch use a loop in the standing part of the rope and the anchor point as makeshift pulleys in order to "theoretically" obtain a 3 to 1 mechanical advantage while pulling on the working end.There is sometimes confusion about how much theoretical mechanical advantage is provided by the trucker's hitch.If the trucker's hitch were to be used as in the pulley diagram at right, to lift a weight off the floor, the theoretical mechanical advantage would be only 2