Deve,
You have to be extremely careful and pay attention if you are going to use the toggle switch method which is directly connected to the solenoid. This is not to be confused with the kick down switch which is a component of the original configuration. A good thing to remember is that with the overdrive engaged - lever pushed in - the car will roll in 1st, 2nd, or 3rd gear when parked. It will not move in reverse. There is a plunger that prevents the OD engagement in reverse but it's possible to override it if the solenoid is engaged in the pawl electrically. If you forget to disengage the switch and attempt to back up, nothing but bad things happen, it can break the pawl, blocker ring, or other expensive and hard to get internal components.
Eric,
Go back and re-read my original post. It doesn't matter if the unit came from a V-8 or 6, car or truck in those years they are all the same except as noted.
I seriously doubt that most ebay sellers know if their OD transmissions are any good or not. Most have some sort of disclaimer like they don't know anything about it or it came from a friend, or found in a barn. It essentially means that you are on your own and it likely needs to be gone through before it can be used. I buy them at swap meets and Craigs List all the time and most are well worn.
If it has a 4 bolt side cover it is a Muncie/BW (55-65), if it has a 7 bolt side cover it a full syncro Saganaw/BW (66-69).
Fred
Last edited by rfs56trk; 06/08/2015 5:14 PM.
