he sheet metal dash differences is the first hurdle. The final hurdle is difference in the climate controllers. The electrical differences don't amount to much comparatively.
Exactly. The sheet metal is a pain. Not impossible, doesn't even require a ton of skill, just a pain. And after everything its still not hard to tell my dashboard wasn't a stock rallye. I may switch another of my cars over to a rallye dash, but I'll be doing it using a full dashboard from a rallye car.
The climate controller wasn't as bad as I thought it would be, although I may still have to modify what I did. The old style uses three cables, so the top lever is a double throw. The later style just uses two cables. I just drilled and tapped a post into the upper linkage so it would work with a single cable. Unfortunately I forgot to take into account the cable routing when I did that, and of course the cable comes from the opposite direction as would be convenient, so I have some tweaking to do.
Electrically its just a matter of moving some wires in the connectors and switching some of the connectors to the older style (wiper, heater switch).
