4x4 / Off-Road TechThis section contains all discussion related to taking the FJ Cruiser in Off-Road situations, 4x4 applications and any armor modifications.
Yes, this is basically correct, but the argument needs further development to make the statement completely valid. If the pedestal is fixed, your statement is true because of the additional 5,000 pound force pushing up on the base of the pedestal; in this case the winch, the pedestal base and the other end of the line are all at the same theoretical fixed point and it becomes the same as if the winch was fixed separately, resulting in a 2:1 pull and 10,000 pounds of downward force applied to the pulley on top of the pedestal. If the pedestal is free to move, then so is the winch; in this case the downward force of the cable on one side is canceled by the movement of the winch, resulting in a 1:1 pull and 5,000 pounds of force applied to the pulley on top of the pedestal.
In the case of an FJ being winched backward on flat pavement, the rolling resistance and other forces would be negligible enough to essentially render the FJ free to move, thus approaching a simple 1:1 pull on the fairlead. In the case of an FJ stuck, the rolling resistance and other forces could be enough to essentially render the FJ immobile or "fixed", resulting in a pull that approaches 2:1 on the fairlead. Your only real mistake was to equate the original posters situation to that of lifting a weight with a rope attached to the ceiling; this latter case would actually be equivalent to the situation in which the FJ is being winched from behind via a cable routed up under the FJ, around the fairlead and back under the FJ to the winch point.
My error was in using this descriptive device to explain how a pulley imparts a 2:1 mechanical advantage. The point is that vehicles that move freely when winched AREN'T STUCK. The static situation where the force is being applied, but the parts do NOT move is what needs to be overcome FIRST before movement begins to occur. It is at this point that the underestimated amount of force is exerted and things can break.
It's the same thing with axles. They don't break when the wheels are turning, they break when the wheels are against significant resistance (in a rut, against a step, etc.) and force is applied anyway (the skinny pedal) despite the fact that the wheel is fixed in position. Axles snap because the amount of force is increased significantly by big tires and low gears. The amount of this force is easily underestimated.
Super cool, but at almost $1,000 inluding shipping I believe I'd get a Front bumper and winch.
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WizardsFirstRule People are stupid;given proper motivation,almost anyone will believe almost anything.Because people are stupid,they will believe a lie because they want to believe it's true,or because they are afraid it might be true.People’s heads are full of knowledge,facts, and beliefs,and most of it is false,yet they think it all true.People are stupid;they can only rarely tell the difference between a lie and the truth,and yet they are confident they can,and so are all the easier to fool
I am blown away by the simpicity of those Aussie wheel winches..... genius..
I do see some draw backs that seem to warrant not using them exclusively....
Thus the hilift is useful and usually along for the ride doing double duty.... but in the end ...for me it still comes back to a reliable , and flexible electric winch ....
Just an observation. While in Zimbabwe, I observed different winch set-ups on various "cruisers." Some had traditional front mounted winches, but they also had an adaptor pulley which they mounted above the cab, on part of their cage. Hence, the cable went from the winch to the pulley without touching any part of the truck and then it was routed to whatever was needed behind the rig. I saw the system used many times with very little drama.
Keep in mind, the weight moved was usually less than 2500 pounds.
Regards, SSC
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2007 Blue Mamba, All-Pro Fox suspension all the way around, All-Pro sliders, skids, front and rear bumpers. Warn 9.5xp winch. 285-70-17 BFG-KM-2's. and a Puddy cat
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