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Ford AOD / AODe / 4R70 |
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The AOD came out in the early 80s as a medium duty auto trasn option with overdrive. The AODe came out in 1992, and is an upgrade, electronically controlled version of the AOD 4R70 is the new SAE-standardized term for AODe. A "w" suffix indicates the trans has the wide ratio gearset. "BadBoy"The “Bad Boy” is a designation High Impact adds to a custom built automatic transmission to differentiate it from a stock replacement transmission. We feel Ford, Chrysler and GM engineers are competent. However the companies are not run by the engineers, they are run by bean counters and marketing types who insist on cost cutting and soft shifting compromises that reduce the transmission below the level preferred by enthusiasts. We like to think the High Impact "BadBoy" transmissions are built the way the engineers would have built them, had they been left alone. A "Bad Boy" Transmission is generally used in vehicle applications where the vehicle will be used in beyond-stock 4x4, heavy duty or performance applications where overdrive capability is desired (30% O/D). The unit is well suited to aftermarket conversion applications as no external computer is required. These transmissions are built for
aftermarket conversions and applications where the demands placed upon the
transmission far exceed anything Ford ever built the unit for. There a number
of standard upgrades included in all Bad boy units, such as an upgraded HD
torque converter with furnace brazed turbine elements and HD lock up
clutches, oversize sprags, upgraded pressure regulator and reverse boost
valve, and internal modifications for improved oiling and shifting. A Bad Boy is
typically engineered and built for a specific application. Diesel
applications require further pump upgrades. Racing applications require
ability to handle hard shifts high RPMs as a matter of course. 4WD
applications must operate reliably at crazy angles, and not slip, even at
very low crawling RPMs. Towing applications must be able to withstand
sustained high torque. 4WD and Towing both tend to exaggerate the heat
loads. Shift firmness and shift points are calibrated to the application. Generally
speaking, any High Impact “Bad
Boy” AOD/AODe/4R70 transmission will withstand 450 ft-lbs of torque, 450 HP,
6000 RPM. It will then be further optimized for the specific application. Further AOD application info:AOD Shifter Pattern The shifter pattern for the AOD is Park, Reverse, Neutral, Overdrive, Drive, and Low. The AOD does not have a conventional manual second gear position. You CAN hold second manually by pulling the shifter back into manual low after it has already shifted to second. If you are going above 20 MPH pulling the shifter into manual low will put the AOD in manual second. This is the factory design method for holding manual second with the AOD AODe / AODe-W / 4R70 / 4R70-W the "e" means it is an electronically controlled trans, as opposed to the AOD which is internally hydraulically controlled. 4R70 is the new SAE-standardized term for AODe.
A "w" suffix indicates the trans has the wide ratio gear set.. Standard Gear Ratio 1st Gear = 2.40 Wide-Ratio Gear Ratio 1st Gear = 2.84 Electronic ControlThe AOD-e and 4r70 transmissions require a computer for shift control. Retrofits of these transmissions into non-computer vehicles can be done through the use of either the "Baumanator" control or the Powertrain Control Solutions transmission control unit. This computer allows the transmission programming to be optimized for durability and to shift as the application requires. It can be used in conjunction with the Ford computer, in computer controlled engine applications, or it may be used entirely stand-alone, in vehicles the do not have any engine computer controls. We base our Ford systems on one of two controllers: Bauman Engineering "Baumanator" TCM Powertrain Control Solutions TCM
Toll Free 888-898-4331 |
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