One final note is that you will hear pros and cons with Hydraulic v. electric.

Pro is more power.
con is the vehicle does have to be running.
KJ PS pump MIGHT be strong enough, that is easily fixable, i think, but the location and tight constraints under the hood as well as, like in my case, just wont fit in the ARB bumper. If you are pulling a big booty surburban then you will need something stronger. For the KJ the M8000 is a good choice. Or the one Troy has, is even better.

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'07 Ltd 3.7L, Black, OME HD's, OME shocks, Mopar Skids, AEV Bridgers w/ TPMS, Kumho KL78's, ARB Bumper, KC 130 Watters, Warn M8000 Winch, Rock Lizard Gecko Roof Basket KC 150 watters, Cobra 75WSX, 3 ft FireFly, RL Super Step Skinks

Although technically an electric winch without the engine running can operate, it's effectiveness to do work will decline along with supply voltage. Batteries do not generate electricity and the current demand will drain the reserves quickly.
1 hp = 60 amps. Warn 8000 4.8hp motor = 288 amps.

It's just a matter of time ( not much) until that winch is no longer capable of 4.8 hp and the voltage sags below what the solenoids need to be energized. Ever hear that clicking starter indicating the Batt is "dead"?

I eat lunch with the R&D guys from Mile Marker and they tell me that the idea a ps pump is not big enough is BS but I don't have a big enough propeller to convey their arguements.

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2006 CRD http://www.UtahPowderCoatings.com/ http://www.gorecon.com/ I'm kind of a big deal.
RL rear bumper, ARB front bumper, Mile Marker winch, Power Tank, Skids by Mopar & Skid Row, RL Super Skink Sliders, 235/85R16 MTR, Air Flow Snorkel, DTT, 4.10 gears, Frankenlift II, Katskin leather, JL Audio stereo, Rosen video.