Allison Transmission > Commercial Products > Specialty Series
Return to Commercial Products Advantages Applications Models
Military Vehicles, Heavy Hauler,
Crane Carrier
Your vehicles are specially built to work hard in tough conditions, day in, day out. They travel long roads, back roads and to places that have no roads. Their performance rises to a whole new level when you spec Allison Specialty Series fully automatic transmissions.
Expand All Collapse All
Startability
Startability is a vehicle's capability to launch and pull a load. Simply put, it's the 'grunt' or 'get-up-and-go' of a truck. Often only 1st gear ratio is used to judge a vehicle's startability. The truth is, one has to consider the engine torque at the required launch rpm and the torque multiplication of the Allison torque converter. Manual and automated manual transmissions have to launch at very low engine rpm in order to prevent damage to the clutch. This means less torque, which is why they have very deep 1st gear ratios to help them overcome their clutch limitations.
An Allison Automatic uses the full torque from the engine and multiplies it with the torque converter. When the 1st gear ratio and rear axle ratio are factored in, the Allison provides greater startability.
Startability Flyer
Shift Energy Management/Low Range Torque Protection (SEM/LRTP)
SEM/LRTP provides better engine/transmission integration to optimize the entire driveline system. The result is faster, smoother, more consistent shift quality, increased powertrain durability, improved performance and an overall more efficient vehicle operation leading to greater fuel economy. This sophisticated communication between the engine and transmission serves as the foundation for other features.
Shift Energy Management Brochure
Prognostics
Allison prognostics allow you to quickly monitor oil life, filter life and transmission health. Prognostics take the guesswork and hassle out of scheduling routine vehicle maintenance to save you time and money while providing maximum protection for the transmission. That means less downtime, lower life-cycle costs and, best of all, greater productivity for your fleet.
Power Takeoff
The Allison Specialty Series is equipped with a standard continuous operation power takeoff provision. The 1000/2000 models offer turbine drive openings in the 3 and 9 o’clock position. The 3000/4000 models offer engine driven PTOs. The 3000 openings are side/side in the 4 and 8 o’clock position; top/side in the 1 and 8 o’clock position. The 4000 model openings are in the 1 and 8 o’clock position.
Specialty Series Ratings
ENGINE: hp (kW)
165-800 (123-597)
TORQUE: lb-ft (N·m)
420-1950 (569-2644)
GVW: lbs (kg)
14,000-unlimited (6,350-unlimited)
Load-Based Shift Scheduling (LBSS)
To optimize fuel economy and maintain superior Allison Automatic performance, Allison LBSS automatically selects between Economy and Performance shift schedules based on the vehicle's actual payload and the grade on which it is operating. It has proven to increase fuel economy by up to 5%*.
Load-Based Shift Scheduling Flyer
Smart Controls
Allison Specialty Series automatic transmissions have brains in addition to brawn. Optional electronic control packages precisely provide the performance features needed to get the job done whatever it may be.
| PTO Enable |
PTO integration made simple using the transmission electronic controls. Commands how and when the PTO engages and monitors operating conditions to minimize potential damage and hazards. PTO Enable Flyer |
Secondary Shift
Schedule |
Select between two pre-programmed shift patterns — quickly and easily. Match shift characteristics to the driving conditions with the simple push of a button. Secondary Shift Schedule Flyer |
| Range Indicator |
Choose the range. Create a reaction. Range Indicator provides a usable electric signal when the transmission shifts to a chosen range. Range Indicator Flyer |
| Third Lockup Pump Mode |
Provides safe, easy split-shaft PTO operation. Step-by-step operator inputs control split-shaft operation and automatically shift the transmission into third range.
Third Lockup Pump Mode Flyer |
