68 Chevelle, I haven't forgotten about you wanting photos of the Panhard bars on my 26 Tudor on TCI A rails..the car is at a friend's house about 20 miles away, and I just haven't had the opportunity to get up there at get some photos.
I can tell you, though, that they both (front and rear) came right out of the Speedway catalog, the front one goes from a welded bracket on the passenger side of the chassis, to a bracket that attaches to the axle/batwings for the radius rods, and the back one attaches, again, to a welded bracket on the frame, to the 3rd member iof the rear end.
I agree with Mr. Severson, Panhard bars are a good thing, no matter what, there will always be a little swing and sway....