Engineering:Ford Type 9 transmission
Type 9 (also Type N, T9, or T-9) is a gearbox from Ford that was used in the Ford Capri 1.6 and 2.0 from 1984 onward; the Capri 2.8 from 1983 onward; the Ford Sierra 1.6, 1.8, and 2.0; the Sierra XR4i and the Sierra XR4x4 2.8; and the Scorpio 4x4; as well as the US-market Merkur XR4Ti and Merkur Scorpio.
The Type 9 was Ford's first five-speed, rear-wheel-drive (RWD) gearbox, and it is based on the four-speed Type E gearbox. The fifth, or overdrive gear, was added to the four-speed gearbox by placing it in the extension housing or tailshaft housing. This made production easier and cheaper, but effectively limited torque capacity to 200 lb. ft. or so.
The Type 9 is a popular choice for five-speed conversions of older Ford cars, such as the Cortina and rear-wheel-drive Escorts, and also for kit car builders since it comes with a separate bell housing so that it can be easily swapped around. Engines that were originally in front-wheel-drive (FWD) layouts are fitted to these transmissions so that they can be placed into a RWD layout, such as in a hot rod engine swap or kit car. The gearbox has a 1-inch-diameter (25 mm) 23-spline input shaft, and the main gear housing is cast iron with a cast aluminum tailshaft housing.
Overall, the Type 9 is suited for vehicles with lower power levels and a lighter weight. However, in applications that require more power, the Type 9 is frequently replaced with the stronger Borg-Warner T-5 transmission.
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