Excel, a brand of Richmond Gear, develops and manufactures high performance gear sets. It offers ring and pinion sets, and transmissions; and accessories, such as installation kits, instructional videos, spools and mini-spools, transmission fluids, and rear end lubes. The company serves automotive aftermarket, construction, agriculture, and marine industries. It offers its products through a network of distributors. The company was founded in 1915 and is based in Liberty, South Carolina, as of December 8, 2011, Richmond Gear, Inc. operates as a subsidiary of Midwest Truck and Auto Parts, Inc.