I really appreciate the information. I looked very hard all over the 2004R tranny housing and could find a place to attach the rod end you see in the pics. I wanted to do it like the factory but the 2004R is so fat in the area of the torque shaft that there is no way the shaft can be any longer than you see it in the pics. I'm pretty inventive but I do understand how it might be possible for the engine/trans to rotate under torque and possibly cause the shifter linkage to move. Lucky for me, I have no plans to race the car so in the worst case scenario the car would go into neutral and at least I would know what happened and put it back in gear.
I also realized that the engine doesn't move front to back very much at all even under load but it does rise up (it tries to rotate). This is why the factory mounted brace is mounted so that the tranny can rotate up or down and the plastic bushing will simply ride up and down on the torque shaft. The linkage that goes from the torque shaft to the trans shift selector is able to articulate in any direction (it doesn't mount solid). As such it should be able to move without pulling or pushing (front to back) on the selector lever. I can also manually move the engine (after loosening the drivers motor mount) once I have it all together and see if anything is affected.
Thanks for the input!!
Treblig