best way to learn is to screw it up once
kind of like the best way to remember your wifes birthday is to forget it...just once is all it takes
you'd be surprised how many of us keep lists of what parts came from what car just so we know what to ask for when we do need something
I'm running a 76 360 in my 71 duster, with a rear end from a 68 dart
if I need from brake parts, I need them for "a 71 duster"
if I need rear brake parts, I need them for "a 68 dart"
you just got to keep track of what section your working on