In the first segment of this article series on Off-Road Recovery, we talked about force and how it comes into play when you’re assessing a recovery situation to determine how it should be handled.
This segment will discuss shackle hitches, a commonly used option for doing vehicle recoveries with an anchor vehicle and their limitations.
As popular as they are for recovery purposes, it’s vital that anyone learning to do recoveries understand how this method works and why using a bumper-mounted winch could be better.
What Is A Shackle Hitch?
A shackle hitch is basically a trailer hitch equipped with a very large, thick D-ring shackle instead of a trailer ball.
The shackle is opened, the recovery straps are looped onto it, and then it’s closed again to make a tight, secure pulling point.
Shackle hitches use an extra thick, screw-in pin that passes through a thick metal receiver that is then inserted into the trailer hitch receiver.
These are used with a trailer hitch that is frame-mounted so there is no question of strength or stability.
How Strong Is Your Shackle Hitch?
Since a shackle hitch used to recover a stuck truck must withstand the extreme force of breaking the vehicle free and then pulling it out, the shack hitch, trailer hitch, and receiver must be rated high enough to do just that.
As with any other recovery gear including your recovery straps, the shackle must be built to withstand more than the weight of the vehicle being pulled since there are a number of forces working on it to keep it from moving.
It must also be properly set up so the pin slides into the receptacle horizontally and the D-ring is positioned horizontally or perpendicular to the pin, as this will more evenly spread the force being applied over the shackle for a safer pull.
Limitations of Shackle Hitches
As strong as they may be, shackle hitches do have a few significant limitations that make recovery with a bumper-mounted winch a safer and preferable choice:
Weight Rating - As stated above, unless the more vulnerable part of your shackle hitch setup is rated well over the weight of the vehicle being pulled, your recovery could become a dangerous one. If you don't know for sure what all your gear is rated, you are better off avoiding the risk and finding a truck with a winch.
Angles and Obstacles - When using a shackle hitch with recovery straps, you’re very limited in the scope of the recovery as you can only pull straight ahead. Ground angles and obstacles in the way of the trapped vehicle can make the recovery more difficult when power cannot be applied where it will work most efficiently to break the vehicle free.
- Applying Power - A safe recovery also involves a gradual yet steady application of power to act upon the forces holding the other vehicle. It requires careful accurate use of the gas pedal to provide that power and a skilled driver to gently break the vehicle free without pulling too fast, spinning tires, and other such things.
A winch on a frame-mounted winch bumper definitely provides the optimum solution in these cases.
A winch will slowly and steadily pull the stuck vehicle forward with power provided by the winch motor plus you can configure the winch cable so that you can bypass obstacles while still applying power directly where it’s needed for an efficient recovery.
Winches Surpass Shackle Hitch Limitations
Although every recovery situation is different, they all have a few things in common.
You must have a safe source of power that’s strong enough to pull out the stuck vehicle and strong enough at its weakest point to withstand all the force and other external factors like angles, obstacles, and the force applied to the cable or chain itself that work against a recovery operation.
In almost all cases, a winch-bumper with a heavy duty winch mounted to it is going to be superior to a shackle hitch setup.
Be sure to read the 3rd part of this series on safe recovery and using shackles with your winch rather than a hitch: Off-Road Recovery 103 - How to Use and Size Shackles!