Rag speed sensor parts?
 

I have a 1991.5 w250 with a Getrag 5 speed in. The transmission is a Chrysler certified rebuild put in by the PO last year. The spedo or odo do not work and he said that I need the little gear for in the trans and the connector sticking out the side looks pretty weathered so I’d assume it’s one off the old trans. Where do you get these parts my local dodge dealer told me that it’s all discontinued which is why I assume the guy drove it with a gps for a spedo for the past year. Any help is appreciated I need it working for inspection.

1st gen parts needs?
PM me I have that stuff.