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Transmission Theory-2: How your T-400 works.

August 13th, 2009
Lets discuss how a General Motors T-400 transmissions and how they operate on a simplified basis. Although it uses different components to produce some of the gear ranges in terms of transmission theory than the 3 speed TF727 transmission, the end result is an automatic transmission with 3 forward speeds. 1. When you put the vehicle [...]
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Part-2 : What is a transmission hydraulic servo assembly?

June 3rd, 2009
The Duties that a servo performs in an automatic transmission are as such: 1. A hydraulic servo-mechanism for an automatic transmission of a vehicle, is specifically designed for applying a band brake to engage a particular gear range of the appropriate band brake to a drum, where the band has an apply side pin or lug [...]
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Part-1: What is a transmission hydraulic servo assembly?

June 3rd, 2009
Introducing the component of an automatic transmission called the servo assembly includes a brief opening description. Servo assembly’s don’t necessarily have to be replaced in a rebuilt transmission, but they certainly should be upgraded to match the duties of your vehicle. A hydraulic servo-mechanism for an automatic transmission, including a hydraulic servo for applying a brake [...]
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What is a brake band in an automatic transmission?

June 2nd, 2009
An automatic transmission band is a steel strap with friction material bonded to the inside surface. One end of the band is anchored against the transmission case while the other [...]
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What is an automatic transmission solenoid??

May 19th, 2009
An automatic transmission solenoid is simply a solenoid. A solenoid is an electrical device that opens and closes by getting a command from the computer in your car. Of course the computer gets many signals from other inputs all over the car, in order to make a decision. What then is a solenoid?? Here is cool [...]
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Explanation of an automatic transmission clutch pack..

May 14th, 2009
The explanation or function of an automatic transmission clutch pack is much the same in every automatic transmission. The post is a courtesy of GotTransmissions.com An automatic transmission clutch pack consists of multiple alternating disks that fit inside a metal clutch drum (Hard Part) . Half of the disks are steel and have splines that fit [...]
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TF-604 automatic overdrive transmission is very unique…

May 8th, 2009
The Chrysler TF-604 transmission is a one of a kind design. Yes it is hydraulic like all automatic transmissions and it has a torque converter with lock up too. but theoretically speaking, it has a few unique features in terms of the way it operates. I need to say that this transmission was a real trouble [...]
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The engine lite comes on and you “limp in” to the transmission shop

May 5th, 2009
Most of the cars and trucks built from the early ’90′s and on use computerized transmissions. The newer the car the more advanced the computer system is. Some cars like the Dodge Viper have seven computers on board. Computerization has been and will be the wave of the future. I’m a big fan of hi [...]
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