Yeah regards the gear linkage posts, i engaged 5th without having it connected to ensure it wasnt just me not getting it right so i'm certain its not that cos there was still no drive, i can put it in and out of 5th with out using the clutch either connected to the gear linkage or not!! and yup all other gears work perfectly!
Whats this screw all about then?
and how can i inspect 5th with the box still on the car?
Cheers!