my prop has slight differences from yours in that the sliding joint is at the gearbox end and there is no torque tube
dimensions are all from the gearbox flange face:
to center UJ 665mm
to center bearing 750mm
full length at mid slide 1445mm
i also have a 10mm spacer that can be fitted on the gearbox end to make its total length 1455mm with +/- 20mm slide which is only 5mm shorter than yours which could be taken up by the sliding joint. remarkable how close they are in total length.
