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Detroit Diesel Corporation - Detroit DT12 Transmissions

An automated manual transmission (AMT) combines a traditional clutch-actuated manual gearbox with a computer-controlled shift actuator and clutch. The best shift patterns are selected electronically to provide optimal power and fuel efficiency.

Specs

Key Specifications
Torque Range 1250-2050 lb.-ft
Speeds 12 Forward / 4 Reverse
Gear ratios / Overall ratio DD: 14.93-1 / 14.93 / OD: 11.67-0.78 / 14.96