The ONCA rear bar as used and issued to Nissan Patrols by Nissan SA, is by far the strongest bar out there, in terms of location points, number of location points, how they engulf the rear chassis down the length, as well as its crossmembers. I have never seen stronger means of attaching the bar. Furthermore, the materials used are overkill, and the shackle location plates are integral to the design of the main plates, so it cannot tear a weld.
As a comparison my mate with a Troopy has a R&D rear bar, ... pathetic. His tore welds, and levered itself on its short mounting points etc etc...terrible.
I use my shackle points to snatch from , and if im just using a pull strap i just use my tow ball receiver point (obviously not the tow ball itself), i just slot the rated pin in, easy.
'07 Patrol Pickup TD42 N/A,285's KM2,3" Lift,ONCA Bars,Warn High Mount,Alu Canopy, and some other Stuff.