What is an Allison AT545?
The AT545 is an Allison 4-speed automatic gearbox. The automatic gearbox comprises a hydraulic torque con- verter, a number of planetary gears disc clutches that lock the different sections of the planetary gears, and a control system that engages the various gears. Maintenance-free disc clutches.
Is the AT545 a good transmission?
With the Allison AT545 you don’t get all that power directly transferred to the wheels. It’s a good transmission for several reasons, First, not having a Lockup torque converter gives it smoother shifts, and the ability to convert torque with the slipping converter does help you get the ball rolling.
What is the service manual for the Allison AT545?
• Check all speed ranges (Reverse, Neutral, Drive, 1, 2, and 3) for correct operation. Gearbox – Allison AT545 Amended: Dart E3 Service Manual – Publication Number 2209 – Nov 2001 SERVICE MANUAL Page 3.7 Description The Allison 2000 series is a fully automatic electronically controlled transmission with five forward speeds.
How does a torque converter work on an Allison AT545?
It works with a set of impellers and transmission fluid flowing between them to transfer power from the motor into the transmission. (see this ultra boring video about how it works How Torque Converters work ). All Automatic transmissions have torque converters but the AT545 does not have the ability to LOCK.
What kind of engine does a 545 Allison have?
I have talked to a Guy that drag races a dodge truck with a 750 hp 12valve and a AT 545 and he says thay are under rated on the power they will take. He likes the slushy shifts because it alows the engine to rev and the torq converter keeps it from breaking loose the tires. He built his own trans brake to get it to launch.
What is the model number of the Allison Transmission?
Contact Central Power Systems & Services for specific vocational ratings. Transmission Model and Applications Original Manufacturer Allison Allison Series AT Allison Model Number AT 545 RemanufacturerPOWERFORCE ® POWERFORCE ® Model Number PF AT 545