From its Columbus headquarters and Detroit satellite division, Capital Core Inc researches, manufactures, and distributes automatic transmission parts for repair shops and other small to medium-sized businesses. With more than 20 years in the transmission-parts industry, the company sources from tier-one suppliers and develops custom and stage kits through its R&D team. Capital Core supports more than 400 businesses and ships parts internationally.
Stellar Automotive GroupFounded in Akron in 1990 with a focus on automotive transmission ring kits, Stellar Automotive Group now distributes transmission parts and supplies custom-built kits and remanufactured transmissions from its Seville, Ohio operation. The company expanded its footprint through a larger facility and two 30,000-square-foot additions, and its 2020 transmission remanufacturing division broadened Stellar beyond parts distribution. Its Lubegard division, acquired in 2012, adds transmission fluids and additives to the group’s automotive offering.SEVILLE, OH
Tri Component Products CorporationSince 1967, Tri Component Products Corporation has supplied automatic-transmission rebuilders with replacement parts and problem-solving components for torque converters and transmissions. The Bronx-based company draws on more than five decades of industry experience and maintains specialized offerings for high-performance and antique applications, including friction materials used in lockup clutches.BRONX, NY
Rockland Standard Gear, IncRockland Standard Gear builds and remanufactures manual transmissions, transfer cases, and related powertrain components, with its Tranzilla Magnum conversions at the heart of its performance work. The company says it has a 30-year track record and builds more than 100 units each week, while its specialty work includes remanufacturing the Corvette ZF S6-40 for ZF and GM—the only North American source for those parts. RSG also backs its products with customer technical support and a stated inventory exceeding $1 million.SLOATSBURG, NY
Shiftworks, IncBorn from its founder’s 1966 LS-powered Chevelle transmission swap, Shiftworks, Inc. makes conversion kits, shifters and related components that let classic-car owners upgrade GM automatic transmissions while keeping the factory interior appearance. In business since 1991, the Ontario, New York company also rebuilds original GM floor shifters and adapts them for modern transmissions, including applications reaching eight-speed automatics.ONTARIO, NY