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Hahahahha - google details for the Chinook's - wouldn't ever want to be in one - they tend to want to roll over of their own accord LOL!!
On topic - I recently had the same situation - before the trip I took out the ball & pin to just use the toe bar - I also spoke with Kaymar about this before hand as it is their bar I have on my RRC - the long & short of it is that toe bar should cope with up to 4x what its rated at... 3.2ton is what most are rated at - x 4 = 12.8ton MAX or breaking strain ??
I left it like this & it was a good thing as a recent local trip called for its use to snatch out a mate in a patrol - I got thought a hole he couldn't lol. We used a 12ton snatch & we did use rated shackles - over 4t. Got him out easy & we both inspected all the gear after - was no problems at all & he was bottomed out on diff's & chassis rails.
So I think its good & Kaymar reckon the pin that holds in the toe hitch won't break! Perhaps just check the wields & what not after each recovery for any sign of them getting weak.
Breaking strain and rated load are not the same thing.
The NZ standards (I expect Aus to be the same) rate towbar strength in compression under braking as these are the biggest loads that can be applied.
They are not rated for that pull in tension.
Even if they did have a ~13 ton breaking load, they'd be bent into a completely different shape at about half that.