Many vehicle enthusiasts from Indianapolis, Indiana, to Seattle, Washington, quickly associate the thought of any high performance automatic transmission with Ford, GM, and Mopar transmissions; however, Allison Transmission, known for their innovative technology, has transformed throughout the decades to excel at diesel transmissions. When it comes to medium and heavy-duty transmissions, torque converters, and controllers, Gearstar Performance Transmissions offer decades of knowledge for the detail necessary in custom-built transmissions according to the specifications of the engines, horsepower and torque output, rear gear ratio, and the application for which they will serve. Anyone from Portland, Oregon, to Concord, North Carolina, looking for a commercial transmission rebuilding company will find all the power and experience necessary with one phone call to Gearstar Performance Transmissions.