Unless you are ready to replace the ECM and do a bunch of
wiring modofications, none. It is a beast of it's own and a
damn good trans when it is properly maintained or rebuilt.
Exactly what are you trying to accomplish or circumvent by
changing to another trans? A 3 speed C6 will royally screw
your fuel mileage and the AOD(E) is definitely not an
improvement in a truck. BTW, the E4OD is loosely based on
the C6 design and some of the parts are event
interchangeable but, it is definitely not a C6.
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