Friday, March 1, 2013

ALLISON 1000/2000 SERIES - PRELIMINARY INFORMATION

Allison Transmission has now developed a family of two new automatic transmissions, refered to as the 1000 Series and the 2000 Series, for light duty (8600-19850 GVW) and medium duty (19850-30000 GVW) commercial trucks. These two new transmissions are scheduled to start appearing in General Motors vehicles for the 2000 model year and come in two wheel drive and four wheel drive configurations, as shown in Figure 2. Both the 1000 and 2000 Series are available with an optional PTO gear. 

The PTO gear is driven off of the torque converter, and thus is turbine driven.  Engine driven performance can be obtained by engaging the torque converter clutch during neutral PTO operation.  PTO mounting provisions are in the form of a standard SAE 6 bolt pad on each side of the transmissions main case, as shown in Figure 1 and 2. General description and operation begins on Page 3 of this bulletin.

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