AC water control valve up to 69 later years have a smaller hose size 5/8 early are 3/4. First pic is 67 which is 3/4 second is 70 which is 3/4 . Same valve different Dia hose on valve
The car is a '71, and based on either a '68 or '69 Dart, as some parts are '68 Dart, some are '69 Dart, and some are just plain ol' "out there (outback?) Aussie"!
Regardless, this one uses a 5/8" valve. Not sure if that's good or bad (obtainable/unobtainable), but it's a starting point, I guess.
