My '72 Cuda has a single rod. Since I have all the interior out and the deck lid still on I thought I may be able to get some photos to help.
Here is a tape hooked on the passenger side and pulled to the drivers side. Approximately distance is 42.5-42.75"
This is a shot of the passenger side-outside.
This is the passenger side from inside.
This is the drivers side from inside.
This is the drivers side shot from outside.
Hope these help. Let me know if you need to see anything more.
Happy Holidays,
Mickm