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Old 11-13-2011, 03:34 PM
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i rarely get jazzed up about a new diff guard design, bumper, etc...if they work, great, but they don't minimize or lighten the load. products like that will always be heavy and somewhat similar in design to achieve the same goal. this shackle weighs nothing, you can keep it in your pocket, it will never rust and seize, you can keep 10 of them in your glove box, hook 2 of them together around your b-pillar if you flop. the uses are almost limitless compared to a standard steel d-ring.
not trying to toot someone's horn, i just think these things are very cool.
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Old 11-13-2011, 04:22 PM
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Quote:
Originally Posted by seventyfive
i rarely get jazzed up about a new diff guard design, bumper, etc...if they work, great, but they don't minimize or lighten the load. products like that will always be heavy and somewhat similar in design to achieve the same goal. this shackle weighs nothing, you can keep it in your pocket, it will never rust and seize, you can keep 10 of them in your glove box, hook 2 of them together around your b-pillar if you flop. the uses are almost limitless compared to a standard steel d-ring.
not trying to toot someone's horn, i just think these things are very cool.
They are cool. Except in the application you have pictured. It appears that "shackle" is nothing more than thick synthetic winch line. You wouldn't catch me using it on a recovery point like on that front bumper. Any kind of side to side movement will have a sawing effect and will quickly destroy your "shackle". Those "shackles" are often sold as a tube-saver for wrapping around round tube(like a roof rack) in the event of a roll over.
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Old 11-13-2011, 06:18 PM
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Interesting.
Just keep in mind that the extreme angle created when it's under load will significantly reduce the load capacity and the choker loop will reduce the capacity by up to a further 50% of the rope strength, depending on how it's oriented.
Shock loading, like during a dynamic recovery, can further reduce it.
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Old 11-13-2011, 06:36 PM
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depending on the rubber jacket, it may last a while...strength ain't gonna be problem, durability will, it's rated for 60 or 70k if it's 1" spectra. Even on a sideload, your gonna break your winchline before that goes...
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Old 11-13-2011, 07:32 PM
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Side loading has no bearing on it, at least not in the above picture.
It's ultimate capacity depends much on how it's rigged, though a lot of the reduction in capacity is caused by how it's attached to the vehicle.

Worst case, the capacity could be reduced 50% by the choker so that's down to 35k capacity (70x.5).
Assuming the tight radius bend further reduces it by only 30% (I think it's actually more) that's another 21k off the capacity (70x.3).
So now you're down to 14k breaking strength. (35k - 21k)
Allowing a paltry 3:1 safety factor and you're down to a 4.5k WLL

I don't know about you, but I'd never use a 2.25 ton WLL shackle with any of my winches.

For safe fixed pin bends the diameter of the pin should be ropeDiameter x 3. In this case, 3".
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Last edited by antichrist; 11-13-2011 at 07:35 PM.
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Old 11-13-2011, 07:52 PM
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I wouldn't use it in that app, but I can see it's purpose...it's all moot anyways, how many guy's double the pull and actually rig shit right. Can't tell you how many time's I've watched knuckleheads on single line pull...
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Old 11-13-2011, 08:05 PM
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I don't think that is a 1" rope, it just looks big because of the splice.
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Old 11-13-2011, 08:52 PM
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Again, my biggest concern is abrasion resistance and shackle failure as a result.
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Old 11-13-2011, 09:36 PM
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Quote:
Originally Posted by mbrummal
I don't think that is a 1" rope, it just looks big because of the splice.
yea but look at the other end...you don't need a splice for a monkey fist and that section still looks big.

Mike, whats the O.D. on this thing?
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Old 11-13-2011, 10:00 PM
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matt,
5/8" 18,000 pound WLL
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Old 11-13-2011, 10:10 PM
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Quote:
Originally Posted by seventyfive
matt,
5/8" 18,000 pound WLL
And it fits in your pocket.
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Old 11-13-2011, 10:11 PM
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Quote:
Originally Posted by Mongo
I wouldn't use it in that app, but I can see it's purpose...it's all moot anyways, how many guy's double the pull and actually rig shit right. Can't tell you how many time's I've watched knuckleheads on single line pull...
there were a group of jeep guys winching one of their buddies truck, straight pull, and the winch truck wasn't even anchored to a tree. they let us help, snatched a tree about 9 o'clock position and double backed. the guy who was winching, no shit, asked what the snatch block was and where he could buy one!

im going to chamfer and file the tabs on the bumper, just took a quick picture to try to show the size.
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Old 11-13-2011, 10:20 PM
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Quote:
Originally Posted by seventyfive
matt,
5/8" 18,000 pound WLL
Ah, it's worse than I thought then.

Quote:
im going to chamfer and file the tabs on the bumper
That won't do it. It needs to be ropeDiameter x 3, so almost 2" to not significantly weaken it.
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Last edited by antichrist; 11-13-2011 at 10:23 PM.
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Old 11-13-2011, 10:29 PM
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Quote:
Originally Posted by seventyfive
im going to chamfer and file the tabs on the bumper, just took a quick picture to try to show the size.
Why not just mount a shackle to the tab and be done with it? Then you can just hook that synthetic shackle thingy to it if you simply must use it in that application.
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Old 11-13-2011, 10:30 PM
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actual 5/8" spectra is rated at 50kish so it seems your math works Tom, anyways good to have ya back...

as for knuckleheads and winching, it falls right in line with guy's who say using a hi-lift to winch with is a good idea and plenty safe...
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Old 11-13-2011, 11:24 PM
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We used these several times a couple weeks ago. Once to pull a 101 up a steep bank. The only thing we had to be careful about was sharp edges. They are easy to use, and even easier to store
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Old 11-14-2011, 09:18 AM
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I just realized I made a significant omission.
I only mentioned the capacity reduction for the tight radius where it's loaded against the recovery eye.
There will also be a significant reduction in capacity caused by the tight radius bend around what you connect to it, assuming you're connecting your winch line to it for a multi-line pull.

For safer use they should be used with two rope thimbles, one for the recovery eye and one for whatever you connect to it.
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Old 11-14-2011, 12:08 PM
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i just wanted to take a quick picture to show the size in relation to my winch line. they are not intended for that application, (if i use it for it's non-intended application, im not advocating someone doing that). having a handful of these adds flexibility when pulling a truck back onto all four tires.
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Last edited by seventyfive; 11-14-2011 at 12:14 PM.
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Old 11-14-2011, 12:17 PM
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^ That's how I thought they were supposed to be used.
Where can one buy these and what's the price?
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Old 11-14-2011, 12:24 PM
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Old 11-14-2011, 01:38 PM
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Quote:
Originally Posted by seventyfive
justin 716 898 8153
Too bad that's waaaay too much effort for a guy like me that's only mildly interested in one of these.
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No matter how hard you stir it you won't make chocolate ice cream out of a bucket of shit
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Old 11-14-2011, 09:19 PM
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Quote:
Originally Posted by fishEH
Too bad that's waaaay too much effort for a guy like me that's only mildly interested in one of these.
?
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Old 11-14-2011, 10:38 PM
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Quote:
Originally Posted by Mongo
I wouldn't use it in that app, but I can see it's purpose...it's all moot anyways, how many guy's double the pull and actually rig shit right. Can't tell you how many time's I've watched knuckleheads on single line pull...

So is it bad to only single line pull? I usually use single line and don't double back to my bumper unless the object I am pulling out is extremely close.

If it stalls then I'd use the pulley, but it rarely stalls.
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Old 11-14-2011, 10:46 PM
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Quote:
Originally Posted by nosivad_bor
So is it bad to only single line pull? I usually use single line and don't double back to my bumper unless the object I am pulling out is extremely close.

If it stalls then I'd use the pulley, but it rarely stalls.
Yes, chances are it will kill you and many others much like the shackle seventyfive has.
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Old 11-17-2011, 05:59 PM
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Quote:
Originally Posted by nosivad_bor
So is it bad to only single line pull? I usually use single line and don't double back to my bumper unless the object I am pulling out is extremely close.

If it stalls then I'd use the pulley, but it rarely stalls.
This isn't the way you should think about it. Doubling your line (back to your stuck truck) makes the winch work less, but will increase the load on your strap, shackle and snatch block. With that synthetic "recovery point" there seem to be many variables of its ratings. I want to know the rating of my gear and potentially the weakest link.

It's always a good idea to get as much line off the winch drum as possible. Your Husky is only rated at 10K on the first wrap on the drum. After that each layer on the drum reduces the pulling power by 10-15%.

A straight line pull is a good option in many cases if the pull isn't that severe and you can keep the pull straight. Once you start adding in resistance (slope, mud, etc) then you want to start thinking about using a snatch block.
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