ID this rear end please.

The Data tag I found on it says: 4360-54 under that it says 137369. What do I have? I want to use it for an AVT type build if it'll work OK. What might it have come from?

436054
DANA/FOOTE/SPICER TRANSMISION
PART 436054
REPLACED BY: 436089

6 speed linear shift transaxle

I can't comment on quality or strength for mower applications, but Dana differentials are supposed to be some of the best for trucks

I'm trying to figure out what I have laying around to work with. I have that one and then the other is a Foote/Dana 4360-122 6. Is there a tread some where on this site that list transaxles with part numbers? are there differant gears available for these? Is there and easy way to hook a keyed sprocket to the axle to run to another shaft for a jackshaft to overdrive the output? I'm afraid if I overdrive the input too fast it'll cook the guts from lack of luberication at highspeed. I plan install really tall drive tires on the build but I'm not really looking anything stuipid for speed. I just want to go a bit faster than stock.

I have a Dana 6 speed and it has taken quite a bit of abuse. Still isn't any bit noisier then it normally is.