Oh heck yeah it would pull it, stoppin' on the other hand...
Adrianspeeder
Adrian, didn't know you were here too! Chuck, from FSB.
Now, as for answering the OP's question, according to TM 55-2320-260-15-1 Transportability Guidance for the M809 series, here are the Army's official weights and dimensions for transporting the M817:
Overall length, w/w: 288.3" (24'-0")
Overall length, wo/w: 273.3" (22'-9")
Overall height, assembled: 112.1" (9'-4")
Overall height, minimum*: 91.0" (7'-7")
Width: 98.0" (8'-2")
Weight, w/w: 23,847lb
Weight, wo/w: 22,615lb
*minimum height per table 2-2 requires removing the cab top, pillar post assembly, tail pipe extension, mirrors and arms, spare tire, lower windshield, and gravel shield (the over cab shield on the bed), and stowing them in the bed.
This TM is the Army's official guidance the logisticians use to figure out how to transport these suckers, and how to fit them on ship, rail cars, etc. I'd give a lot of credence to the dimensions, and pretty good credit on the weight. Meanwhile, it looks to be well outside the capacity of a 10T gooseneck with a typical 7T payload, since it weighs in at at least 11T without the winch ...