Help Me Identify This Gearmatic Hydraulic Winch

[Dangerous_Dan]

I picked up 2 of these winches with the intentions of mounting one on the back of a Komatsu D-31E-18 Dozer. The tag is missing on one and the other is partly rotted away and unreadable.
I opened up the motor section and it looks great. It has some heavy duty needle bearings supporting the gears in the motor. This thing is big!
What I would like to know is the line pull and the GPM / psi for the motor.
Does anyone recognize this winch and know the model number? or where to look for some identifying numbers on the castings? or have some measuremnets to compare it to?
Thanks
DD

[KGNC]

Nice winch,
You may have already found that some Gearmatic stuff is on the Paccar website. http://www.paccarwinch.com/
Not sure if you find details on yours.