I've only done this once, but my memory tells me that there's something at the rear of the engine that needs to be removed so that the engine can tilt rearward without breaking it, ... plus the fan shroud. The engine is well balanced on the mounts without the transmission attached.

I have removed a couple, installed one, wasn't complicated but very heavy to hold up by hand, ... took me a while to recover from the muscle strain.

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Gone to the dark side

- Jeff