Heavy-duty transmission builds in Portland deliver rugged reliability for towing and off-road use.
Schedule an appointmentAt Trans Medic, our heavy-duty transmission builds combine 296 years of combined expertise with premium performance components to handle the most demanding applications. We hand-select reinforced clutch packs, hardened gear sets, upgraded valve bodies, and high-capacity torque converters. Each unit is carefully assembled, pressure-tested, and electronically calibrated to deliver consistent shifts, optimal line pressure, and resistance to extreme heat and load. Ideal for heavy towing, commercial fleets, and serious off-road use, our builds are engineered for longevity under the toughest conditions.