What about transmission tunnel, and locatuion of floor shifter on the AOD? is that affected by the longer AOD?
in my '71 that i have been working on, im going to be running a '91 AOD out of a cougar which should have the short tail shaft compared to the bigger cars.... so we'll see how it goes
1. A stock C4 with good maitenance won't NEED any mods to work with 200 HP. Personally I like a quicker than stock shift and the ability to select any gear (1 or 2) at any time while retaining the ability to let it shift on its own. That is why I recommend the 40-2 TransGo kit for the valvebody. It takes a little time to install yourself and willmake your transmission shift better and live longer. Add to that an auxilary cooler and you can double the life of your C4. 2.The AOD in the mustang and all other cars except the large luxury Lincolns and Mercurys are all the same length. As far as I know there are only two lengths and the difference is one inch. In some cars you can put the AOD in with nothing but a crossmember change and use the old drive line. Some you need to shorten the drive line. (they can be the same model) There are tolerances that when all of them add up then you can drop in the AOD and others of the same make and model the same AOD will require the driveline to be shortened. Such is life in the mass-production industries. The only way to tell for sure is to put it in and find out. You can get a fairly close approximation by measuring while the C4 is in place and then insert the measurements of the AOD and see if there is enough slack in the driveshaft and other parts for the AOD.
