engine and gearbox fitting question

[Crankster]

Try and keep the bus as level as possible.....if possible...
You don't want to be overstraining the gearbox mount while you lift the engine into place, or vice versa.
I know someone who "hung" the engine first and then re-positioned his jack to lift the gearbox end.......while he was dicking around, both engine mount rubbers tore.....

Biggest inconvenience of doing them separately, imo, is that 9/10 you'll have to remove the carbs to get enough clearance whilst mating the engine to the gearbox.
You also have better access for torquing the gearbox to engine while it's all out.....

Keep it level: mantra of my life I feel

Good points and makes sense: don't tear the rubbers !!!