Highly unlikely it’s the trans. Manual transmissions are basically just boxes full of gears and oil (yeah, yeah there are synchros too but let’s stick to basics here) so when you break something it’s usually obvious, like grinding, snapping and shattering noises.
Hopefully it was just that the clutch was hot. Did you smell anything? Shuddering, sort of a side to side vibration of the driveline with some for/aft jerking, can be caused by a worn out or burned clutch, a warped flywheel or pressure plate or dead/missing trans mounts but those aren't likely to go away.
If any harm was done, it’s done but since the car’s working normally now there probably wasn’t any severe damage. I’d just keep driving it normally unless it starts acting up.
As for teaching her, you already got the hardest part done. Feeling the take-up is tough part and she’s got that. Now she just needs practice, in a deserted space of some kind.
PC. |