Established in 2013 by master differential tech Nils Bull, Bull Built Differentials is the culmination of years of experience with some of the top manufacturing companies and leading brands in the differential industry. With duties encompassing installation, technical support, retail and wholesale parts sales, engineering liaison, even working with Department of Defense contractors. The experience helped shape a background and develop relationships necessary to specialize in a niche market at a caliber matched by few. From these building blocks Bull Built has grown into the leading premier differential shop in the region with a reputation for top quality work, expert knowledge, and five-star customer service.

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