Either the clutch or transmission.....
I had a clutch lever control split on me (at a traffic light no less). A pop! and the pedal went to the floor. Luckily, I had my foot firmly on the brake. Jeep died, I cranked it back up at the green light and pulled off at a parking lot to troubleshoot.
So, more info would help. Cable tension, inspection window, stick shift movement with engine off, etc.
Pictures always help.
