need a pic of master cylinder with manual setup

So here is what i have. Im guessing that rod is what needs to be replaced? Has anyone modified something to make they're own rod? I bought a new master cylinder from autozone for a 70 duster. They asked if it was drum or disc but it apears its only a sigle res MC. If i went to the later MC what year and model am i looking for?

Yes, you need a manual brake rod, unbolt the one in your pic from the brake pedal. You can buy an adjustable manual rod. Mancini and summit have them. Make sure you get the small plastic piece for the end of the rod, it keeps it from falling out of the mc. I swapped to an aluminum 2 bolt version like in pic above, with the 4 to 2 bolt adaptor and bought a mc for 79 aspen.

http://www.manciniracing.com/brakcylpuspa.html