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Its neat how the expensive hitches give you the sway stability of a fifth wheel trailer. The propride and hennsley connect to the trailer with a a 4 bar trapazoid link. The converging links make the trailer move around a virtual pivot point near the rear axle. The Pullrite connects underneath the vehicle and has an actual pivot at the rear axle.
Last edited by miket; 10-21-2010 at 06:18 AM..
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