right update time.
ive taken the box off again and found the splines on the centre plate are fucked, this is why i lost gears, it popped off the input splines aand the end 5mm of centre plate splines are gone.
so basically the clutch centre wasnt attached to the box
why or how this happened im not really sure.
but it means i need to send the centre plate back to ap to have a new spline fitted, and im gunna rebuild it in a week or so whenever that returns,
while its apart im gunna get the flywheel and ap cover plate skimmed cos they got a bit hot during all this shit. and refit it with a new smaller slave that will push more and give me better clearance.