the "rings" have been discussed quite a bit in I4WDTA circles... most of the consensus is that friction in these setups is a real problem at higher loads...
Not necessarily heat (we tried and it does bring some heat into the mix but not a dramatic amount).
The rigging in the video is a kinda version of the Spanish Burton.
Look at the pulley attached to the other wrecker with all the lines. This has the termination end of the the winch line AND is attached to the wrecker directly.. under pressure it's not going to move so it is purely a friction pulley. And the snatch block may break though since you can now put 4x the winch rated capacity on it... and are pulling on it from either end..
Anyway here is how to do it correctly.. this is a 4x system and only uses 2 pulleys...
I'd not do it as shown in the video..
Not necessarily heat (we tried and it does bring some heat into the mix but not a dramatic amount).
The rigging in the video is a kinda version of the Spanish Burton.
Look at the pulley attached to the other wrecker with all the lines. This has the termination end of the the winch line AND is attached to the wrecker directly.. under pressure it's not going to move so it is purely a friction pulley. And the snatch block may break though since you can now put 4x the winch rated capacity on it... and are pulling on it from either end..
Anyway here is how to do it correctly.. this is a 4x system and only uses 2 pulleys...
I'd not do it as shown in the video..