Do mean a turn signal switch?
If so, drop this guy a line. Here is his email address, perisho@athenet.net
He has one for a 73 Rx2. I was looking for a 2 wire one, were you have a 3 wire one.
I don't know if he still has it, but I wouldn't see why he wouldn't.
Hope this helps.
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1972 Rx2 - no enigne or trans
1974 Repu - runs and drives
1976 Rx4 - no engine or trans (klaus42 old 4)
1977 Repu - Parts