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Medium-Duty Commercial Transmissions

5-Speed and 7-Speed Synchronized RWD Manual TransmissionsTREMEC Medium-Duty Commercial Transmission

Ideally suited for local pick-up and delivery operations, TREMEC 5 and 7-speed synchronized manual transmissions empower fleets to run a more fuel efficient, reliable and profitable business.

These robust, easy-to-maintain transmissions feature a modular end-load case design, and positive gear engagement with the patented OPTI-RAIL™ shift rail system.

The unique OPTI-RAIL system completely eliminates all shift rail fasteners. Stress is distributed evenly throughout the structure, providing greater strength. Overall stiffness has been improved by 100%, virtually eliminating shift fork deflection.

Taper Lok™ shift collars and synchronizers improve shift quality and performance while helping prolong transmission life. Taper Lok works with the main shaft, drawing the gears into position and locking them firmly in place.

The dual pivot-point Gimbal Shift Tower dampens and absorbs mechanical and sound vibrations from the driver. The result is a tighter shift pattern, a smooth and definitive gear engagement, and quieter operation.