Vertical or horizontal?

[tonkota]

I'm looking at several bumpers and have noticed that shackle placement is usually to a welded vertical member. Is there a reason for this? Why not horizontal? Or why not one of each? It seems to me that if a guy had to make a side-ish type pull the vertical member may bend or break. But the same is true if the pull was upward for a horizontal member. Do angled pulls happen more than upward pulls?

 

[stuckinnz]

I think the main problem with a horizontal bracket would be when the truck angle changes and the large shakle bangs from side to side and most mudders might have a sinking feeling in there wallets
also if it was welded in the centre of the box section it might be prone to bending the face of the box, so keep it on the edge(radius/corner) of the box, and I cant see any problem with it apart from being different to all the rest

 

[Awl_TEQ]

My opinion is that one is more often pulling on a tree 10' off to the side rather than another rig 10' higher than you are. Pulling from an anchor straight ahead would be only a few degrees up or down which the shackle can handle. Its pretty tough on a shackle to pull 90 degrees to the left or right with a vertical ("standard") mount - pretty tough on the rig too but I dare say it happens. And whether you mount vertical or horizontal its always a good idea to spread the load with a plate between the shackle mount and tube. Mine will have clips to hold the shackles to the bumper.

I'm not sure how this would affect my wallet. If I wanted to be the same I'da bought a jeep .

Simple solution is to use two stacked shackles.

 

[jasonmt]

This is my solution to angled pulls:

 

[Awl_TEQ]

This is my solution to angled pulls:

View attachment 353260

How much and where? I tried to find them but could only find stuff in the UK at crazy prices.

 

[Bogo]

5000lbs only??? I'd have much stronger recovery points than that.

I think it is so they can leave their shackles on. Personally I'd keep them in the recovery bag and out of the elements.

My ARB has the holes horizontal. My plans for the rear bumper also have them horizontal, but that is because I will be using a simple 3/4" plate bolted directly to the frame. Doing the vertical would require a more complex setup which I may still do.

 

[stuckinnz]

5000lbs only??? I'd have much stronger recovery points than that.

I think it is so they can leave their shackles on. Personally I'd keep them in the recovery bag and out of the elements.

My ARB has the holes horizontal. My plans for the rear bumper also have them horizontal, but that is because I will be using a simple 3/4" plate bolted directly to the frame. Doing the vertical would require a more complex setup which I may still do.

Thats WWL(weight working load) very similar to the old SWL(safe working load) a factor of 7-1 which equates to a minimum braking strain of 35,000lbs + 10% = 38500lbs actual breaking strain.
I think thus should work

 

[jasonmt]

How much and where? I tried to find them but could only find stuff in the UK at crazy prices.

I got lucky and when we bought some used gang boxes off of a large project a couple of them were full of brand new rigging. Otherwise there are many places to get them, IE Titan Supply, Continental Chain & Rigging etc. along with the big MRO's (Acklands, Century-Vallen etc.)

The Crosby ones are expensive but a non Crosby 3/4" 5000# WLL one similar to the pictured Crosby but in black oxide finish can be had locally for under $100 a unit.

Edit: If you want some I can make a few phone calls next week when I am back in town.

5000lbs only??? I'd have much stronger recovery points than that.

I think it is so they can leave their shackles on. Personally I'd keep them in the recovery bag and out of the elements.

My ARB has the holes horizontal. My plans for the rear bumper also have them horizontal, but that is because I will be using a simple 3/4" plate bolted directly to the frame. Doing the vertical would require a more complex setup which I may still do.

It sounds like the difference between recreational recovery gear rated by its breaking strength and industrial rigging/lifting gear with at rating the reflects at least a 5:1 safety factor based on the breaking strength might be something not clearly understood.

As already pointed out the 5000# is the WLL/SWL with at least a 5:1 safety factor built in so the minimum breaking strength on the ones in the picture is over 27,000#'s and they have been proof tested to over 12,000# and mag particle inspected by the manufacturer after the proof test.

Rated by the same standard the common 5/16" wire rope on most of our winches would have a WLL/SWL of under 2000# based on it's nominal breaking strength of under 10,000#'s.

Just to illustrate, one of these is rated at 20,000#'s and one is rated at 6,200#'s. Care to guess which is which and which style I actually use:

The 6,200# rated one has a minimum breaking strength of 31,000#'s:

 

[tonkota]

My opinion is that one is more often pulling on a tree 10' off to the side rather than another rig 10' higher than you are. Pulling from an anchor straight ahead would be only a few degrees up or down which the shackle can handle. Its pretty tough on a shackle to pull 90 degrees to the left or right with a vertical ("standard") mount - pretty tough on the rig too but I dare say it happens. And whether you mount vertical or horizontal its always a good idea to spread the load with a plate between the shackle mount and tube. Mine will have clips to hold the shackles to the bumper.

I'm not sure how this would affect my wallet. If I wanted to be the same I'da bought a jeep .

Simple solution is to use two stacked shackles.
View attachment 353200

I'm of the same opinion and I like those mounts.