Hmm intersting.
Whats the motor, looks like its smaller than a G400, is it a GX of some sort??
Looks like a mini tractor 8 or tractor 12 front on the bonnet.
Clutch looks like the same as what should be on mine.
If you get a chance could you wash off the top of the deck and snap some pics. I would think that its similar to the vertical shaft jobs.