Hyd Pump - What did I just buy?

[Heavy Metal]

Picked one of these off ebay. Couple left. Anyone know anything about these? Did I waste my money? Lower pressure than most stuff on here. Thought these might work for utility applications like tow truck and utility truck booms or stabilizers, etc. Didn't do the math to see if it could lift a dump truck body full of sand....maybe retrofit w/ a new set of SS gears would allow higher pressure? Mostly wanted to just tinker with it some day and see what I could make it do.

http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWNX:IT

Joe