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  • Magna PT

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  • Allison Transmission

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    Allison Transmission is an American manufacturer of commercial duty automatic transmissions and hybrid propulsion systems. Allison products are specified by over 250 vehicle manufacturers and are used in many market sectors including bus, refuse, fire, construction, distribution, military and specialty applications. With headquarters in Indianapolis, Indiana, Allison Transmission has regional offices all over the world and manufacturing facilities in Indianapolis, Chennai, India, and Szentgotthárd, Hungary.

  • Sequential manual transmission

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    A sequential manual transmission (or sequential manual gearbox) is a non-traditional type of manual transmission used on motorcycles and high-performance cars for auto racing, where gears are selected in order, and direct access to specific gears is not possible. With traditional manual transmissions, the driver can move from gear to gear, by moving the gear lever to the appropriate position. A clutch must be disengaged before the new gear is selected, to disengage the running engine from the transmission, thus stopping all torque transfer. This type of transmission is often referred to as a H-pattern because of the path that the shift lever takes as it selects the various gears. As the gear shifting process requires attention and dexterity that might be needed in managing sharp corners in car races, sequential transmission has been introduced into many competition rules as an alternative. A true sequential transmission will very often use dog clutch engagement rather than the more usual synchromesh as fitted to a normal H-pattern road car gearbox. Engagement using dogs requires only a very brief interruption of engine torque to complete a shift into any adjacent gear.

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