If you have a TKO, TR3550,T56,T5 Ford sender it should look like this
https://www.summitracing.com/tx/part...0013/overview/
Speedo Sensor, 3 wire Digital, Ford gear drive with 10' Pigtail harness
They are made in a 90 deg offset for clearance as well.
Best if you can get a PN off yours to see if its a 16 PPR (pulse per rev) or an 8 PPR unit.
16 PPR is more common.