I'll get back to the original question, probability of using a hydraulic winch such as the mile marker.
I drive a D110 runs on diesel, so I'm not worried about loosing a winch power since shut down of the engine.
The engine runs well also at deep water crossing, and actually when I go off road I never shut it down (except when need some silent). So hydraulic seems better to me.
To fit a hydraulic winch it is not recommended to use the original power steering pump since:
1.This pump belongs to the steering cycle. You donít wanna destroy it.
2.This pump gives you sufficient flow rate (GPM) with a nice pressure output, BUT right at the output you have a restrictor, which reduce the pressure down. It's good for the steering box but not sufficient for the winch.
3.Both costumers on the same pump will boil the ATF liquid. At most of the winching period you use the steering system to "fix" yourself.
Try to get a PTO hydraulic, oil cooler & a reservoir can for the extra oil. Or use a ZF belted pump with the rest of the kit (includes brackets, belt, bolts EctÖ). I recommend the second option Ė it's more cheep & common.
I use those at a quite hot region (Israel) & it never failed, also used it at the army on a humvy & land rovers. Very reliable system,
but on the civil life it fits to rally vehicles which donít trust on the electric engines due to heavy duty usage.