Ford AOD Transmissions
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In order to alter power routing through the tranny and thereby dramatically increase its power handling capability, LenTech teaches the AOD’s valvebody new tricks, some of which are even patented. The weak part of the factory powerflow is that in Third gear, power mostly goes through the AOD’s small inner input shaft—which is permanently locked up to the converter front cover at one end—and the 3/4 direct clutch drum at the back. In Third, this direct clutch is engaged by the valvebody to lock the planetary gear carrier to the forward-driven sun gear. In a planetary gearset, if you lock any two of the sun gear, planet carrier, or ring gear together, then you get direct 1:1 drive. In its Street Terminator Lockup AOD, LenTech still uses the pair of concentric input shafts, but reroutes Third-gear power to the stronger, outer shaft, driven off the converter turbine (i.e., not locked up) by using the valvebody to lock the reverse sun gear and shell via the Reverse clutch, to the forward-driven sun gear. Overdrive remains the responsibility of the inner, locked-up shaft. View Related Article
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Ford E-250 Research
Get updated on all your car buying needs from safety features, to specs, to crash test ratings and options. Get all the information you need if you are interested in buying a new car like the Ford E-250. Fuel efficiency is important and the 2010 E-250 has fuel economy comparable to other cars in its class, and also comes with comparable safety features. The Ford Shelby GT500 and the Ford Mustang are other vehicles that might interest you.
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