66 Dart GT HT Whatsitgonnabe?

If you cannot find one, theres a bunch of rods on evilbay. I tried plugging in your rod part number. No bueno on the number, but it looks as though they gave em with many lengths, and large and small end diameters. You may be able to find one there in the proper length, and just have the holes reamed up to size. They are cheap enough. Averaging about $8-$12 to buy even if you have to have a machine shop ream it up to a finished size. I can say honestly with the pic, mine really doesnt look close. You will need to get one with the same throw length as yours.
Well, duh. Ebay. I didn't even think of that. Thanks, Matt!