Yup, I did the 71 with that harness and it was really nice to use. Everything labeled and easy to read. BUT it is a universal Mopar harness, it isn't tailored to a certain Mopar, so I did have to make a few modifications. It wasn't a big deal because I had alot of other modifications to make since I had custom gauges and such.
But taking all the old connectors and transfering them to the new one was a bit time consuming as well, not including cleaning them and making sure they worked good.
It is really easy, one strand is for engine bay stuff, other is for gauges, etc.. and the last is for rear wiring and other interior items.
Ryan