Retrofit swappers can use the AOD-E/4R70W or AOD in earlier 3.8L V-6, many straight 6 and most small-block V-8 applications by relocating the transmission cross-member rearward a few inches (or modifying the transmission mount) and providing control electronics (for AOD-E/4R70W) or fabricating TV linkage/cable bracketry (for AOD). As long as the engine will mate with the AOD-E/4R70W or AOD’s small-block bell housing pattern, it can be used with these transmissions. It is important to use a flex-plate (automatic transmission flywheel) that is properly balanced for your engine (correct year and displacement) and will accept a full-size torque converter with an 11-3/8-inch bolt circle. Additionally, the flex plate must have a 164 tooth ring gear and should be used with the correct starter and block plate. Shift linkage and drive shaft length will vary on a case-by-case basis and may need little or no modification in some cases.

An AOD-E/4R70W may be fitted in a similar manner to the AOD, with the exception of a slightly longer overall length (roughly 7/8-inch) and the absence of TV linkage. Instead of TV linkage, an electronic control system is necessary which may consist of either an EEC system from an AOD-E/4R70W vehicle or the Baumannator TCS™ Electronic Transmission Control System. It is also imperative to get the correct transmission case; either a 4.6L (modular engine) case or a 5.0L (small block) case, depending upon your requirements.

For big-block or heavy-duty applications, you may wish to convert to the E4OD transmission. You will need a C-6 type flex-plate for your engine application and a transmission with the correct case style (small-block, big-block, or diesel). The drive shaft will probably require shortening and cross member and shift linkage modifications will be necessary, as described for the AOD. As with the AOD-E/4R70W, either a Ford EEC system or the Baumannator TCS™ Electronic Transmission Control System will be required to operate the transmission.

The A4LD, 4R44E, 4R55E and 5R55E can be adapted to four cylinder and small-pattern 60-degree V-6 engines using guidelines similar to those for the AOD and AOD-E/4R70W, with minor exceptions. Since the A4LD uses a vacuum modulator (instead of TV linkage) a vacuum source and kick-down linkage (similar to the C-3, C-4 or C-6) is required. 4R44E, 4R55E and 5R55E swaps will probably prove similar to A4LD conversions with the substitution of control electronics for vacuum modulator plumbing and kick-down linkage.
 

Please read this section for important information about the old AOD's TV Linkage and its proper care.
 

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