I have a 1995 GT vert. The driver's power seat will go up and down, but not back and forth. Anyone know why??

 

Could be a bad switch, broken wiring, or a bad seat motor. You need to unbolt the seat and check it out.
Do you hear the seat motor run?

 

just do what i did when mine got screwed up.... go to a junkyard, and find a passenger seat bracket. bolt it to your drivers seat. Unfortunately you will no longer be able to move it up and down.... but atleast you dont have to worry about it getting stuck too far back