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Allison 1000 transmission

From Wikipedia, the free encyclopedia

The 1000 series (and similar 2000 and 2400 series) is a line of automatic transmissions for on-road trucks. All are 5 or 6-speed electronically controlled units and are manufactured by Allison Transmission in Indianapolis, Indiana as well as in Baltimore, Maryland.

Allison 1000

Initially the Allison 1000 was a 5 speed transmission, rated to handle up to 620 lb·ft (841 N·m) of torque. A new "Generation 4" 1000 was introduced in 2005 that added a 6th gear at the very top of the ratio ladder, making it a double-overdrive. For the 2006 model year, manual gear selection was introduced. This feature gives the driver greater control over the transmission, enhancing operation when engine braking or less frequent shifting is desired.

Allison 1000
Allison 1000
Allison 1000 cutaway
Allison 1000 cutaway

Gear ratios:

1 2 3 4 5 6 R
3.10 1.81 1.41 1.00 0.71 0.61 (06+) 4.49


Allison 2000

The Allison 2000 is rated to handle up to 620 lb·ft (841 N·m) of torque.

Gear ratios:

1 2 3 4 5 R
3.51 1.90 1.44 1.00 0.74 5.09


Allison 3070/4070


Allison 3700SP


See also

This page was last edited on 5 March 2020, at 18:39
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