Rob, current knowledge says the entire turn signal assembly switch is a single part. Not sure if the wide-body '80-up cars used the same assembly. What breaks inside is the turn signal cancel-cam and another nylon piece associated with it. No known interchanges. DeTomaso had his own p.n system which he continued to use while Ford rigged up their own. All the numbers are now gone from Ford databases. DeTomaso's own system did not follow Ford's p/n rationale.
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