So I picked up a knackered gearbox from Grim. Gearbox stripped now and ready for a rebuild. Great gearbox chap. Fully inspected and looks ok. New input shaft ,baulk rings, bearings kit ordered. I spent couple of hours this afternoon modifying the tail housing as I do not want to open a new hole in the tunnel. I modified it and Martin @ Mk welded it.
Pictures speak for themselves
We turned down an alloy spacer to hold the shaft in place and prevent any play so the shaft is aligned correctly