Yep. I bought one a few years ago. Can't remember where I got it, but probably AutoKrafters or Melvins, or maybe the "Help!" section at the auto parts store... https://www.autokrafters.com/produc...rino-72-77-maverick-more-automatic-c6oz-2457a You listed a 1970 part number; is your '71 pedal the same as the '70? I know those were more squared off than the one I linked to...
Yes, it's squared off and actually has the D0DZ engineering number as well as the D0DZ-2457-B part number embossed on the back side of the pad. All of the suppliers that I have found so far list the C60Z Fairlane pad which is only correct for the later cars.
Okay, I didn't know the '71 had the same pedal as the '70. You could probably easily swap to a '72-'77 non-power brake pedal...