A-904 Interchange

There was a difference in the cases right in front of the low reverse band servo, so make sure the case matches up in that area, and doesn't uncover/cover any holes. There was a front converter snout dimension change along with the crank pilot hole, also an input spline change about the same time. Problem is, these trannsss have been swapped around over the years and so you don't really know what you have until you take it apart. The crank could have been changed, the whole motor, the input shaft; sometimes they even run the small snout converter in the big hole crank...