Tractor universal joint.
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Previously:
Farmers jailbreaking John Deere tractors to repair them - video
Mini John Deere tractors - photo and videos
Semi-tractor hauling three semi-tractors - GIF
Snow removal with Caterpillar tractors c. 1926 - video
Steam tractors pulling bi-directional tilting plow - GIF
Twin and triple-engine tractors - video
