Very helpful thank you! My next question would have been about it being restampted so that's useful to know.
That makes sense because there is no synchromesh on 1st gear but I had previously that down to the poor condition of my first gear which doesn't have much life left
Reason for asking about the gearbox number is that I'm trying to work out what's best, to have it rebuilt or find another unit.
I understand the 1600 gearbox is a lot weaker, especially for the 2 Litre - it looks like having it rebuilt might be a false economy, so a more appropriate replacement is needed.