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2. Fifth-wheel coupling - Wikipedia

   en.wikipedia.org/wiki/Fifth-wheel_coupling

   The fifth-wheel coupling provides the link between a semi-trailer and the towing truck, tractor unit, leading trailer or dolly. The coupling consists of a kingpin, a 2-or- -inch-diameter (50.8 or 88.9 mm) vertical steel pin protruding from the bottom of the front of the semi-trailer, and a horseshoe-shaped coupling device called a fifth wheel ...

3. Kingpin (automotive part) - Wikipedia

   en.wikipedia.org/wiki/Kingpin_(automotive_part)

   Kingpin (automotive part) The steering kingpin is held in place by the forked ends of a beam axle on a Ford Model T. The kingpin (also king-pin, king pin and k pin) [1][2] is the main pivot in the steering mechanism of a car or other vehicle. The term is also used to refer to part of a fifth wheel coupling apparatus for a semi and its trailer ...

4. Trailer (vehicle) - Wikipedia

   en.wikipedia.org/wiki/Trailer_(vehicle)

   A fifth wheel uses a large horseshoe-shaped coupling device mounted 1 foot (0.30 m) or more above the bed of the tow vehicle. A gooseneck couples to a standard 2 + 5 ⁄ 16-inch (59 mm) ball mounted on the bed of the tow vehicle. The operational difference between the two is the range of movement in the hitch. The gooseneck is very maneuverable ...

5. Fifth wheel (Brooks Walker) - Wikipedia

   en.wikipedia.org/wiki/Fifth_wheel_(Brooks_Walker)

   Fifth Wheel. In the 1930s, Walker invented a device which used added a fifth wheel to cars to aid parallel parking. The extra wheel was mounted on the rear of the vehicle, at right angles to the rest of the wheels. When in use, the fifth wheel lifted the weight of the back of the car off its normal rear wheels, allowing the rear of the car to ...

6. Chevrolet Tahoe - Wikipedia

   en.wikipedia.org/wiki/Chevrolet_Tahoe

   Features that differ from those previously mentioned on the Tahoe Limited included the Z71 off-road chassis package (46 mm (1.8 in) Bilstein shock absorbers, a standard 3.73:1 rear axle ratio for the G80 locking differential), color-keyed wheel flares, trim, grille, and bumpers, underbody skid plates, inset driving lights built into the center ...

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