70 Duster power to manual brake conversion

I'm working on this now. Did you use a stock manual brake push rod? What bore was the new master cylinder?
The MC was from Doctor Diff, the aluminum master cylinder kit. The push rod was the adjustable heim joint from the same. The bore was 15/16 but is available also in 1 1/32. I believe the issue in length is probably due to the difference between a power and manual pedal being different. A stock rod might work better but I have no experience. At least the adjustable had some adjustment available after I trimmed it a bit. And it's a quality piece. I would do it again. If I could weld easily a stock rod would have probably been much cheaper to adapt though.