Speed sensor

my speed sensor is broke and stuck to my transmission it shifts a little funny is this going to affect my trans and if so is there a way to get it to break free i took it to one mechanic he said he could do nothing about the issue so i need some advice

Make, model, mileage, please…

How is it broken? I’ve seem some sensors break, leaving the threaded shell in place. A star bit or large easy-out can be forced into the shell and used to extract it without damaging the threads.

Murcury, tracer and unsure of the milage it says 166*** but hasnt worked since it broke… and its alluminum and so is the tranny it appears that it got to hot and stuck together like a weld