Help! broken speed sensor

The little plastic thing that connects to the speed sensor fell in to the tranny when it didn't have any fluid. It got pushed in by my inlaw so I cant retrieve it without removing the tranny. What would happen if I were to leave it in there and put another one in? Or do I have to remove the tranny? I have a 1995 dodge neon MTX.
Thanks in advance.

then you will obviously have that little piece getting pushed through the tranny when you try to drive it, possibly causing serious damage to the tranny. you need to locate it and find it. not sure where you dropped it but you need to get it out.

Hi, Speedometer and odometer not working. can anyone help to fix problem. im not mechanic but learn quick. Thanks Joe...

Hi, Speedometer and odometer not working. can anyone help to fix problem. im not mechanic but learn quick. Thanks Joe...Search and you will find your answer....
http://www.automotiveforums.com/vbulletin/showthread.php?t=480855&highlight=CLUSTER