OK, to add to the voltage regulator, I know the VR for a 1974 Saab Sonnet, 96, or 99 will work. Back in the day I would order those because they were $10 less than ordering it for the Opel GT. Basically that is my point. Save a few bucks and order locally when possible.
Any idea if there are bearing, or piston interchanges?
Why won't a Vega or Chevette clutch work? Weren't the Vega transmissions and Opel transmissions the same (for the most part)
And finally, yes I could possibly find it all with a search (except for the clevis pin fix) but the point here is to lump all the interchanges in one thread. Hopefully this can be a first stop thread so people don't have to go through dozens of threads to get the answers they need.