Rockland 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.
Certified ZF Remanufacturer
certification
Tremec Elite Distributor
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Gearstar Performance TransmissionIn Akron, Gearstar Performance Transmissions builds high-performance automatic transmissions tailored to an engine’s power, gearing and intended application. Owner Zack Farah came out of a high-volume transmission operation more than 25 years ago to focus on the custom performance work that off-the-shelf units could not provide. Each transmission is handled by one builder, and the company remains under its original owner while its employee-owned team serves automotive enthusiasts across the country.AKRON, OH
Precision TransmissionFor 35 years, Precision Transmission has built its reputation around heavy-duty transmission expertise, including more than three decades as a ZF Off-Highway distributor and remanufacturing center. From facilities in Pennsylvania and Florida, the company supports fleets and operators by rebuilding transmissions and maintaining exchange units to reduce downtime.811310COLMAR, PA
Reliable Transmission ServiceSince 1981, Reliable Transmission Service has focused exclusively on servicing and remanufacturing Allison transmissions. Now an Authorized Allison dealer with nine U.S. locations, RTS uses Allison-certified technicians and a repair-before-replacement approach, while also providing onsite field service and technical support. Its remanufacturing operation is authorized for overhaul and backs its transmissions with a “Good as Gold” warranty.DAYTON, OH
Competition Transmission and Converters, LLCFounded in 1983, Competition Transmission and Converters builds custom transmissions and torque converters for everything from street rods to dragsters in Western New York and beyond. Owners Carl and Joan Ettipio bring more than 35 years of racing experience to drivetrain work, with converters built and computer balanced in-house and transmissions tailored to demanding street, circle-track, and dragstrip applications.NEW HYDE PARK, NY