Alright I have a gsr tranny I had a small grind in 3rd gear other then that no problems, well today I went to the track today and ran a couple times. When I went to leave I started my car and there was no neutral or any gear besides 4th, I never heard anything as far as noises from the tranny. I was thinking do you think maybe the rubber bushing on the bottom of the shifter above the exhaust could have got caught up and is causing it to not move!! I just haven't heard of anyone loosing all the gears! Please give me your imput THANKS FOR YOUR HELP

 

It's possible you had a problem with your clutch not grabbing which was causing the grind in third, and the drag racing exacerbated it. That would be my first guess.

It's either the clutch hydraulic system (usually either the slave or master cylinder), or perhaps the clutch itself.

 

actually it ended up being the arm assy that changes the gears in the tranny the arm broke off!! Thanks for your help though!