Transmission Oil Leak

I think I worked out where the leak was coming from. I jacked the front up to put it back on chassis stands and oil came out of the rear seal, around the transmission output shaft. This splined output shaft has to be mated to the splined universal adapter on the prop shaft. I hadn't fitted the prop shaft yet. So I have now fitted the prop shaft which creates a snug fitting on the oil seal in the gear box. I will drop the rear end to see what happens when the car is inclined again, to see if any more oil comes out.