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Allison fully automatic powershifting transmissions combine torque converter operation with "closed loop" adaptive controls to provide the smoothest possible ride.
Allison transmissions maintain constant power delivery to the wheels during gear changes, so acceleration is brisk and steady, even on steep grades. So your drivers can keep to their tour times and your passengers are happy.
The electronically controlled output retarder in an Allison transmission allows smooth progressive stopping and the seamless transition between the retarder and service brakes ensures greater control at low speeds, while providing additional braking on hills.
An Allison transmission is designed to operate as quietly as possible, minimising stress for the driver and maximising comfort for the passenger. The planetary gears are helical cut resulting in significantly reduced noise output both inside and outside of the bus. The transmissions modular structure has fewer moving parts and the lock-up clutch ensures no mechanical slip between the engine and transmission.
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