Hey guys. I just bought a couple 3.25 ton rated shackles because that's what came recommended to me. They're the arb ones. Now that I've done some research I'm thinking that might be too light weight for the 80 series? Let me know, thanks.
shackles
- Thread starter spencertron
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well, for reference -unless you have a tanklike 80- you could lift it straight up with one of those, assuming this is WLL. (And still have a safety factor of 2 or 3 to failure.)
For normal stucks probably OK -impossible to say with certainty of course- but I like to go overkill on safety margins so I use bigger ones. The size of the big ones does become an issue though. My 12tons ones are pretty big and heavy for routine use. I like to go somewhere in between. I'd be comfortable with 6 or so tons. Twice the truck weight + safety factor seems fine and not too big. There is also the issue of fitting the pin in the recovery point of course.
Even if you get bigger ones, keep these. One never has too many shackles.
Good shackles are inexpensive considering what you're asking them to do (and what they could do on their own).
Just MHO.
For normal stucks probably OK -impossible to say with certainty of course- but I like to go overkill on safety margins so I use bigger ones. The size of the big ones does become an issue though. My 12tons ones are pretty big and heavy for routine use. I like to go somewhere in between. I'd be comfortable with 6 or so tons. Twice the truck weight + safety factor seems fine and not too big. There is also the issue of fitting the pin in the recovery point of course.
Even if you get bigger ones, keep these. One never has too many shackles.
Good shackles are inexpensive considering what you're asking them to do (and what they could do on their own).
Just MHO.
FJ40-GARAGE
I`ll be back....
Whats the bolt diameter?
Do they have an imprint on there, if so they should be good for 3.25ton x 7 = 22.75 ton
3.25t = work-strength
22.75t = break-strength
x7 is the european factor for lifting equipment.
http://centraloverland.com/2011/04/...rking-load-swl-minimum-breaking-strength-mbs/
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ARB D Shackle 3.25T 7280lb (ARB207B)
that's them. i dont know why the picture isn't working on their site so i can't see if there is a stamp or not. i trust arb so i'm assuming they're good quality for towing.
that's them. i dont know why the picture isn't working on their site so i can't see if there is a stamp or not. i trust arb so i'm assuming they're good quality for towing.
Southeast Overland
Get lost! Go explore!
Shackles most often used for 'typical' SUVs off-road are 3/4" with a 4.75 WLL and a 4:1 or 6:1 safety factor.
Few things to remember:
This is what you bought from ARB.
ARB D Shackle 3.25T 7280lb (ARB207B)
This is the ARB 4.75 ton shackle.
ARB D Shackle 4.75T, 10,472lb (ARB207D)
Other good shackle options are Van Beest Green Pin (what we carry) and Crosby. I prefer non-Chinese made shackles too to be even more conservative with my safety margins.
Few things to remember:
- Steel shackles seldom break, but if one does it = bad news. You don't want a hunk of metal flying back at you.
- The safety factor is there to keep bad things from happening. Shackles often suspend objects in the air so if one breaks one could drop. Also, in a horizontal (off road) application if one breaks something could come flying at you.
- Steel shackle pins often bend well before the shackle breaks. If a pin bends then destroy the shackle.
- Figure the weight of your vehicle, then multiply it times 2 or 3 and that is not an unrealistic load for a shackle to bear during a "stuck as all get out" recovery, especially if snatching is used.
- A 3.25 ton shackle would probably work fine in many towing applications - BUT - personally I would NOT use a shackle with a 3.25 ton WLL on my heavy FJ55, or even my FJ Cruiser (which is pretty heavy too) and I wouldn't sell those to my customers either.
This is what you bought from ARB.
ARB D Shackle 3.25T 7280lb (ARB207B)
This is the ARB 4.75 ton shackle.
ARB D Shackle 4.75T, 10,472lb (ARB207D)
Other good shackle options are Van Beest Green Pin (what we carry) and Crosby. I prefer non-Chinese made shackles too to be even more conservative with my safety margins.
lrowe_csp
Too many cruisers, not enough time
Crosby is another good name in rigging and their 3/4" D ring shackles are also rated at 4.75 Tons, with a minimum breaking strength rating 6X that. Good american company, and this is used by crane companies and riggers all over the country.