Almost, Jeremy. Except my linkage hangs down instead of being upward. It is like I show in the drawing from the manual below. I originally thought it would work like your drawing and I have that bracket...grea t plans don't survive intial contact!
Here is a diagram from the shop manual. This pic is for the smaller transmission like I took out, but the the 727 is the same other than the mounting bracket is very short.
Okay, we see the bracket on the frame which I have and we see the torque shaft that goes across to the transmission. That is like I took out. It will not work on the new set up because the headers are in the way. The solution to that is a torque shaft that is made to work with headers and I have that. It goes up and over the headers and comes back down on the transmission side where it should stick into the bracket that bolts to the transmission.
This is where the problem is. I have the correct bracket for a 727. What I don't have is the mounting boss on the 727 case that is going into the wagon so I cannot bolt the bracket to the transmission.
The 727 in my Challenger DOES have the boss-go figure.
If you look at the attached drawing from the manual, you can see the bracket and where it mounts to the transmission. I just don't have the boss on the case to bolt it to.
My solution is to fab an arm on the bracket and bolt it to a different spot of the transmission so that it ends up in the correct spot but the mounting point has been moved six or eight inches.