Snowblower...will it fit? (PICS)

I'm pretty sure that will work. It's complete....there's nothing missing that I can see. A 900 series does not use a subframe like later Landlords and such. That hitch mounts right up to your Allis, and you'll need the 147" belt (1666798) that runs off your mid PTO.

I believe you need blower #1690548 and hitch #1690557, which resembles what you have. Blower might be a bit different, but the hitch is the important part.

Check out this...
http://bsintek.basco.com/BriggsDocumentDisplay/default.aspx?filename=heCyEN8cqHZrE3Cvh5kbp796Dq

I apologize...I'm not seeing the second pulley on the hitch. Kevin's right...if there's two pulleys, you need the front PTO on your machine.

Kevin...can't you convert the two pulley version to a single pulley and run off the mid PTO? Just thinkin out loud...