Speedometer cable troubles

[EclipseGST]

If you put the bolt back in, the picture you posted is all that comes out. With the bolt out, the whole sensor can come out. Actually better so you dont break it removing the tranny.

If the tranny/engine are still together, turn the engine over by hand to rotate the flywheel with the tranny in gear. This in return will move the front differential which the speed sensor is geared into. Might help if its stuck. Sounds like something is either rusted in or the gears stripped.