Allison 1000 transmission
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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 and in Erskine, Minnesota.
The 1000/2000 Series is the smallest transmission that Allison manufactures. Other transmission families include the 3000, 4000, 5000, 6000, 8000, and 9000 Series, with correspondingly larger and more capable transmissions as the number increases.
Allison 1000
Initially the Allison 1000 was a 5 speed transmission, rated to handle up to 620 lb⋅ft (840 N⋅m) of torque. This rating has increased as the transmission was updated several times, to stand at 765 lb⋅ft (1,037 N⋅m) by 2011 in GM truck applications.[1]
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.
Gear ratios:
| 1 | 2 | 3 | 4 | 5 | 6 | R |
|---|---|---|---|---|---|---|
| 3.10 | 1.81 | 1.41 | 1.00 | 0.71 | 0.61 (06+) | 4.49 |
Applications:
Allison 2000
The Allison 2000 is rated to handle up to 620 lb⋅ft (840 N⋅m) of torque.
Gear ratios:
| 1 | 2 | 3 | 4 | 5 | R |
|---|---|---|---|---|---|
| 3.51 | 1.90 | 1.44 | 1.00 | 0.74 | 5.09 |
Applications:
- B-7 bus
- C-Series truck
- Cheetah MMPV
- F-Series truck (Ford F-650)
- International XT Series
Allison 3070/4070
Applications:
Allison 3700SP
Applications:
- Family of Medium Tactical Vehicles (FMTV)
- BAE Caiman MRAP
See also
References
- ^ "Allison 1000 Specs & Ratios". www.duramaxhub.com. Retrieved 2021-10-19.
External links
- "Vocational Model Guide 2017" (PDF). Allison Transmission.
- "Vocational Model Guide 2019" (PDF). Allison Transmission.
- "Vocational Model Guide" (PDF). Allison Transmission. 2021.