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Big Bud Tractor. Big Bud Tractor. 16-V 747 Big Bud The World's Largest Farm Tractor. In 1977 the Big Bud 747 tractor was built in Havre, Montana. The tractor was built by Ron Harmon and the crew of the Northern Manufacturing Company. The tractor was built to produce 760 horsepower using a 16-cylinder Detroit Diesel engine. The tractor measures 27 feet long, 20 feet wide, and 14 feet tall.
THE LONGEST LIST OF THE LONGEST STUFF AT THE LONGEST DOMAIN NAME AT LONG LAST. What is the world's largest monster truck? If you're thinking Bigfoot, you're close, in fact there have been over 20 Bigfoot monster trucks built to date. The largest of the Bigfoot's and world's largest monster truck is Bigfoot 5. Bigfoot 5 was built by Bob and Marilyn Chandler of St. Louis, Missouri in 1986 and it's currently used as a display vehicle at Bigfoot's headquarters in Hazelwood, Missouri.