Mine isn't a rallye - I'm not sure if they are the same as far as this kind of stuff, but here are some pics of mine if it helps - standard cluster from my 73...
For the lighting they are the same, cheers for the photo.
Man when I think of the amount of wiring harnesses I've thrown away or sold on my $2 tarp.....It's times like this that a used one would come in handy....if only you lived closer...
Thanks for the consideration, I have a whole range of parts brewing on summit racing order, adding a light socket to the list shouldn't blow the budget... yet!!!
I kept the original non-functioning wiring harness in the car for as long as possible while installing the painless system. Until one day I chucked a mantrum and started slicing until all of the old harness was sitting in a bucket. I occasionally look through my bucket of wiring and pull out useful pieces.