I have a 02' Z and last night when i was driving down the road i shifted into 3rd gear and after a few seconds it just popped out of gear. Then i put it back into the gear and it popped out again. It would grind a little bit and then all of a sudden pop out . Today when i was on my way to work it did it again when i was accelerating onto the highway. My friends had a few suggestions on what it was and it was either the clutch, throwout bearing or synchros in the tranny. So guys i need help cause i want to get a clutch because mine is slipping and i dont wanna drop the tranny twice if you know what i mean so i am open to any and all suggestions on what it could be. Thanks