Mack’s official documentation emphasizes strict safety protocols for transmission maintenance: Mack T308 Transmission Service Manual | PDF - Scribd

: The modern standard is the Mack mDRIVE , an automated manual transmission (AMT) that eliminates the clutch pedal while using intelligent software to monitor grade, speed, and acceleration.

According to Mack Trucks New Zealand , the current high-performance standards include: : One-piece heat-treated aluminum.