I probably know the answer, but it always worth asking the question. Can the gearbox be removed without removing the engine or at least dropping the engine. The universal housing cap on the end of the drive shaft is snug to the inner housing cap, so that there is no way these seem to be coming apart without moving the engine forward. I need to address various oil leaks to include new oil pan gasket, oil on the clutch and oil from the output shaft into the joint housing.
When I had mine out I was advised that it’s possible – but actually easier / quicker to just have the engine out than fiddle around trying to shuffle it forward enough. I do have an open prop shaft so easier than a torque tube but the gearbox mounting metalwork meant that I couldn’t really pull it back far enough, hence the engine came out too.
Also…. Peter Love said this on the Social WhatsApp chat (let me know if you want adding to that group)
You can tell him Ben it’s quicker to take the engine out than undo the rear axle springs to move it all back with the torque tube etc. If it was just the pan gasket, he could do that in situ. Yours PL Also how does he know its on the clutch as there is a drain hole in the bellhousing and all Allards leak. They only have a screw at the crankback end. PL